A cyclone desander with a filter cartridge

Abstract

The present application relates to the technical field of fluid separation equipment, and particularly relates to a cyclone desander with filter cartridge, which comprises a cyclone desander body, which is respectively communicated with each pipeline system; the pipeline system comprises a straight-through pipeline system, a desanding pipeline system, a desanding-filtering pipeline system, a sand discharging pipeline system and a venting pipeline system. The straight-through pipeline system is directly communicated between an inlet pipe and an outlet pipe; the desanding pipeline system is communicated with the cyclone desander body through a conveying pipe, the bottom of the cyclone desander body is communicated with a sand storage cylinder, and the top of the cyclone desander body is communicated with the outlet pipe; the desanding-filtering pipeline system is communicated with the cyclone desander through the conveying pipe, the top of the cyclone desander body is communicated with the filter cartridge, and the filter cartridge is communicated with the outlet pipe. The sand storage cylinder and the filter cartridge are further provided with the sand discharging pipeline system; the pipeline system is further provided with the venting pipeline system. The present application realizes the technical problem of rapidly and repeatedly desanding and filtering a gas-liquid mixture and improving separation efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fluid separation equipment, in particular to a cyclone desander with a filter cartridge. BACKGROUND

[0002] The cyclone desander is a device for water treatment and solid-liquid separation, widely used in mining, chemical industry, sewage treatment and oil and gas industries. Its working principle is to use cyclone to introduce liquid containing solid particles into the device, and separate the solid particles by centrifugal force to achieve solid-liquid separation.

[0003] However, the existing cyclone desander device has poor separation effect for smaller particles, and is usually more suitable for separating larger and heavier particles. Smaller particles may be discharged with water flow, which is difficult to completely separate, resulting in secondary pollution, reducing separation efficiency and quality. Moreover, the separation effect of the cyclone desander is affected by the viscosity, density and flow characteristics of the liquid, and is more suitable for the separation of solid-liquid mixture. When facing the desanding of gas-liquid mixture, it is difficult to separate fine floating impurities by centrifugal force because the gas is lighter, which has certain limitations. SUMMARY

[0004] The purpose of the present application is to provide a cyclone desander with a filter cartridge, which can realize rapid and multiple desanding and filtration of gas-liquid mixture and improve the separation efficiency.

[0005] In order to solve the above technical problems, the application adopts the following solutions:

[0006] A cyclone desander with a filter cartridge, comprising a cyclone desander main body.

[0007] Preferably, the cyclone desander main body is communicated with the inlet pipe, sand storage cartridge, filter cartridge and outlet pipe through the pipeline system.

[0008] Preferably, the pipeline system includes a straight-through pipeline system, a desanding pipeline system, a desanding-filtering pipeline system, a sand discharge pipeline system and a venting pipeline system.

[0009] Preferably, the straight-through pipeline system includes a straight-through gate valve and a conveying pipe, and the straight-through gate valve is arranged on the conveying pipe connected between the inlet pipe and the outlet pipe.

[0010] Preferably, the desanding pipeline system is that the inlet pipe is communicated with the top of the cyclone desander main body through the conveying pipe, the bottom of the cyclone desander main body is communicated with the sand storage cartridge, and the overflow port of the top of the cyclone desander main body is communicated with the outlet pipe through the conveying pipe.

[0011] Preferably, the sand-removing and filtering pipeline system is that the inlet pipe is connected to the top of the cyclone sand remover through a conveying pipe, the bottom of the cyclone sand remover is connected to the sand storage cylinder, the overflow port of the top of the cyclone sand remover is connected to the outlet pipe through a conveying pipe, and a filter cylinder is arranged on the conveying pipe between the overflow port and the outlet pipe.

[0012] Preferably, the sand storage cylinder and the filter cylinder are respectively provided with sand discharge pipeline systems.

[0013] Preferably, the cyclone sand remover, the sand storage cylinder and the filter cylinder are jointly connected to an air vent pipeline system.

[0014] Preferably, the sand discharge pipeline system of the sand storage cylinder is that a flushing port is arranged on the wall of the sand storage cylinder, the flushing port is connected to an external water pump pipe, and a sand discharge port is arranged on the bottom of the sand storage cylinder.

[0015] Preferably, the sand discharge pipeline system of the filter cylinder is that a flushing port is arranged on the wall of the filter cylinder, the flushing port is connected to an external water pump pipe, and a sand discharge port is arranged on the bottom of the filter cylinder.

[0016] Preferably, the air vent pipeline system is that air outlet ports are arranged on the filter cylinder and the sand storage cylinder, the two air outlet ports are connected through a conveying pipe, the top of the sand storage cylinder is connected to the inside of the cyclone sand remover, the conveying pipe is connected to one end of a valve of a communication gate valve two, and the other end of the valve of the communication gate valve two is connected to an air discharge port.

[0017] Preferably, the sand discharge pipeline system of the sand storage cylinder includes a flushing gate valve one and a flushing gate valve two.

[0018] Preferably, the upper part and the lower part of the sand storage cylinder are respectively connected to a flushing port, the upper flushing port is connected to the flushing gate valve one, the lower flushing port is connected to the flushing gate valve two, the two flushing ports are both connected to an external water pump pipe, and the flushing gate valve one and the flushing gate valve two are both located between the flushing ports and the external water pump pipe.

[0019] Preferably, the filter outlet of the filter cylinder is provided with two filter outlets, which are respectively located on the upper part and the lower part of the filter cylinder, and the two filter outlets are both connected to the same conveying pipe, and the conveying pipe is connected to the outlet pipe.

[0020] Preferably, the filter cylinder includes a cylinder body, the inside of the cylinder body is provided with a filter cavity, the upper end of the cylinder body is connected to a filter inlet, a filter screen cylinder is fixedly arranged in the filter cavity, the wall of the filter screen cylinder is provided with a filter screen, the top end of the filter screen cylinder is a through port, and the filter inlet is connected to the through port of the top end of the filter screen cylinder.

[0021] Preferably, the wall of the cylinder body is respectively penetrated by two filter outlets, which are respectively located on the upper part and the lower part of the filter screen cylinder in the filter cavity.

[0022] Preferably, the upper part of the cylinder is also provided with a vent, which is located in the filter cavity and above the filter screen cylinder, and the vent is connected with the conveying pipe outside the filter outlet and the filter cavity.

[0023] Preferably, the vent is also provided with a gas filter.

[0024] Preferably, the gas filter comprises a mounting cylinder and a filter core.

[0025] Preferably, the mounting cylinder is fixed in the vent, and a layer of filter core is screwed in the mounting cylinder, and the filter hole diameter of the filter core is smaller than that of the filter screen on the filter screen cylinder.

[0026] Preferably, the upper part of the cyclone sand remover main body is connected with the two inlet pipes through the conveying pipe, and the overflow port at the top end of the cyclone sand remover main body is connected with the two outlet pipes through the conveying pipe, and the inlet pipes and the outlet pipes are connected in parallel.

[0027] Preferably, the inlet pipe, the straight-flow gate valve and the outlet pipe are connected in series.

[0028] Preferably, the sand discharge pipeline system and the venting pipeline system are both provided with a throttle valve.

[0029] Preferably, in the sand discharge pipeline system, the throttle valve is connected with the sand discharge port.

[0030] Preferably, in the venting pipeline system, the throttle valve is connected with the conveying pipe connected with the communication gate valve II and the exhaust pipe port.

[0031] The technical scheme of the present application has at least the following advantages and beneficial effects:

[0032] In the present application, the straight-through pipeline system, the sand removal pipeline system and the sand removal-filtering pipeline system are arranged to connect the cyclone sand remover main body, the sand storage cylinder and the filter cylinder respectively, so that the gas-liquid mixture with different impurity contents can be quickly removed, and the conditions are as follows:

[0033] For the gas-liquid mixture without impurities, it is a normal working condition, and the gas-liquid mixture passes through the inlet pipe, the straight-through pipeline system and the outlet pipe in sequence and directly and quickly;

[0034] For the gas-liquid mixture with less impurities, it is a normal working condition, and the gas-liquid mixture passes through the inlet pipe, the cyclone sand remover and the outlet pipe (the sand removal pipeline system) in sequence, and only the cyclone sand remover is used for quick sand removal work;

[0035] For the gas-liquid mixture with more impurities, it is a severe working condition, and the gas-liquid mixture passes through the inlet pipe, the cyclone sand remover, the filter cylinder and the outlet pipe (the sand removal-filtering pipeline system) in sequence, and the cyclone sand remover and the filter cylinder are used for multiple filtering and sand removal work, so as to ensure the sand removal efficiency and quality of the gas-liquid mixture with more impurities.

[0036] In the application, by setting the sand discharge pipeline system on the sand storage cylinder and the filter cylinder, that is, setting the special flushing port and sand discharge port on the sand removal cylinder and the filter cylinder, in the sand discharge process, the external pump water pipe is connected to the flushing port, the water flow is flushed into the sand storage cylinder and the filter cylinder, the impurities are flushed, and then the water flow flows into the sand discharge port and is discharged to the outside through the sand discharge pipeline system, so that the sand discharge cleaning in the sand storage cylinder and the filter cylinder is realized.

[0037] In the application, by setting the gas outlet on the cyclone sand remover main body, the sand storage cylinder and the filter cylinder respectively, the three gas outlets are jointly connected with the venting pipeline system, so that they are all connected to the gas discharge port for gas discharge work, so that after the equipment stops working, the gate valve connected with each equipment is in the closed state, and the residual pressure in the equipment is vented.

[0038] In the application, by setting the filter outlet on the upper part and the lower part of the filter cylinder respectively, after the gas-liquid mixture accumulated in the filter cylinder is stratified, the impurities in the gas located in the upper part of the filter cylinder and the liquid located in the lower part of the filter cylinder are filtered and discharged.

[0039] In the application, by setting a vent on the upper part of the filter cylinder, the gas filter element with a smaller filter hole diameter is arranged in the vent, so that in the process of filtering the gas from the filter cylinder, the gas flow of the filter outlet is large, most of the gas is discharged from the upper filter outlet, and a small part of the gas is discharged from the vent. Because the vent is located outside the filter screen cylinder, the gas entering the filter cavity through the vent has been filtered by the filter screen of the filter screen cylinder. When the filtered gas passes through the filter core of the vent, impurities can be prevented from blocking the filter core with a small pore diameter, and when the filter screen of the filter outlet is blocked, the filter outlet can still be connected, so that the pressure difference inside and outside the filter cylinder is balanced. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is a schematic diagram of the axial structure of the application.

[0041] Figure 2 It is a schematic diagram of the right view structure of the application.

[0042] Figure 3 It is a schematic diagram of the rear view structure of the application.

[0043] Figure 4 It is a schematic diagram of the sectional structure of the filter cylinder in the application.

[0044] Figure 5 It is a schematic diagram of the sectional structure of the gas filter element in the application.

[0045] Figure 6 It is a schematic diagram of the structure of the gas filter element in the application.

[0046] Figure: 1 - inlet pipe, 2 - straight-through gate valve, 3 - outlet pipe, 4 - total gate valve I, 5 - conveying pipe, 6 - cyclone desander main body, 7 - sand passing gate valve, 8 - sand storage cylinder, 9 - overflow pipe, 10 - desanding gate valve, 11 - total gate valve II, 12 - filter inlet gate valve, 13 - filter cylinder, 131 - cylinder body, 132 - filter cavity, 133 - filter screen, 134 - filter outlet, 135 - gas outlet, 136 - water outlet, 14 - filter outlet gate valve, 15 - flushing gate valve I, 16 - flushing gate valve II, 17 - sand discharging gate valve, 18 - sand discharging pipe, 19 - aeration gate valve, 191 - aeration straight pipe, 192 - aeration flow pipe, 20 - flushing gate valve III, 21 - communication gate valve I, 22 - communication gate valve II, 23 - exhaust pipe, 24 - throttle valve, 25 - gas filter, 251 - mounting cylinder, 252 - filter core. DETAILED DESCRIPTION

[0047] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0048] It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. If the terms "center", "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is usually placed, and are only used to facilitate the description of the present application and simplify the description, and therefore, cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, cannot be understood as limiting the present application. It should also be noted that, unless otherwise explicitly specified and limited, if the terms "arrange", "mount", "connect" appear, they should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication between two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0049] In the prior art, the cyclone desander utilizes centrifugal force to realize solid-liquid separation. After liquid enters the centrifugal cavity of the cylindrical cone at a high speed from the tangential inlet, a rotating flow is formed under the rotation of the internal cyclone. The particles with higher density (such as sand and metal scraps) are thrown to the wall under the action of centrifugal force and slide down the cone to the underflow outlet for discharge. The purified liquid is discharged from the upper part of the centrifugal cavity through the central overflow pipe. This process is similar to the dehydration of a washing machine, in which heavy objects are separated by rotation.

[0050] Embodiment

[0051] Please refer to Figures 1-6 The present application provides a cyclone desander with a filter cartridge, which comprises an inlet pipe 1, an outlet pipe 3, a cyclone desander body 6, a sand storage cartridge 8, a filter cartridge 13, a straight-through pipeline system, a desanding pipeline system, a desanding-filtering pipeline system, a sand discharge pipeline system, and a venting pipeline system.

[0052] Further, in the process of conveying the gas-liquid mixture without impurities, the flow path of the gas-liquid mixture is the inlet pipe 1 - the straight-through pipeline system - the outlet pipe 3. The straight-through pipeline system comprises a straight-through gate valve 2, which is fixedly arranged in the pipeline of the inlet pipe 1 and the outlet pipe 3 and is used to control the gas-liquid mixture to flow out of the pipeline directly.

[0053] Further, in the process of conveying the gas-liquid mixture with fewer impurities, the flow path of the gas-liquid mixture is as follows: after entering the inlet pipe 1, the gas-liquid mixture enters the cyclone desander body 6 through the desanding pipeline system connected to the inlet pipe 1 for desanding, and the selected sand is discharged into the sand storage cartridge 8. The desanded gas-liquid mixture is introduced into the desanding pipeline system from the overflow port and then flows to the outlet pipe 3 for discharge, so that only the cyclone desander body 6 is used to remove the fewer impurities in the gas-liquid mixture.

[0054] In this process, the straight-through gate valve 2 in the straight-through pipeline system is in a closed state and is not connected, so that the gas-liquid mixture only passes through the desanding pipeline system.

[0055] Among them, please refer to Figure 1 In this embodiment, the desanding pipeline system comprises a total gate valve one 4, a conveying pipe 5, a sand passing gate valve 7, an overflow pipe 9, a desanding gate valve 10, and a total gate valve two 11.

[0056] Specifically, the inlet pipe 1 is connected to the total gate valve one 4, the total gate valve one 4 is connected to one end of the conveying pipe 5, and the other end of the conveying pipe 5 is connected to the upper part of the cyclone desander body 6. When the total gate valve one 4 is opened, the gas-liquid mixture flows into the cyclone desander body 6, the cyclone desander body 6 drives the gas-liquid mixture to rotate, the impurities in the gas-liquid mixture are separated to the bottom of the cyclone desander body 6, and the desanded gas-liquid mixture is always above the cyclone desander body 6 due to the centrifugal effect.

[0057] Specifically, the bottom sand outlet of the cyclone sand remover main body 6 is connected with the sand gate valve 7, the sand storage cylinder 8 is connected below the sand gate valve 10, the separated impurities are discharged into the sand storage cylinder 8 for storage after the sand gate valve 7 is opened; the overflow port at the top of the cyclone sand remover main body 6 is connected with the overflow pipe 9, and the excessive gas-liquid mixture above the cyclone sand remover main body 6 will overflow from the overflow port into the overflow pipe 9 for continuous flow (wherein the gas is lighter in weight, and thus directly flows into the overflow pipe 9 at the top of the cyclone sand remover main body 6).

[0058] Specifically, the overflow pipe 9 is connected with two sections of the conveying pipe 5, one section of the conveying pipe 5 is connected with the sand gate valve 10 (the other section of the conveying pipe 5 belongs to the sand-removal-filtering pipeline system, which is in a closed state and does not flow at this time), and the end of the conveying pipe 5 is connected with the total gate valve two 11, which is connected with the outflow pipe 3; after the sand gate valve 10 and the total gate valve two 11 are opened, the gas-liquid mixture after sand removal directly flows from the overflow pipe 9 to the outflow pipe 3 to flow out, thereby realizing the rapid sand removal of the gas-liquid mixture with less impurities.

[0059] Further, in the process of conveying the gas-liquid mixture with more impurities, the flow path of the gas-liquid mixture is as follows: after entering the inflow pipe 1, the gas-liquid mixture enters the sand-removal-filtering pipeline system connected with the inflow pipe 1, and then enters the cyclone sand remover main body 6 for sand removal (to remove larger impurities), the selected sand is discharged into the sand storage cylinder 8, the gas-liquid mixture after sand removal flows out from the overflow port (into the other section of the conveying pipe 5 not connected with the sand gate valve 10), and then enters the filter cylinder 13 for filtering of smaller impurities, and then flows from the filter cylinder 13 to the outflow pipe 3 to flow out, thereby using the cyclone sand remover main body 6 to remove large and more impurities in the gas-liquid mixture, and using the filter cylinder 13 to filter smaller impurities in the gas-liquid mixture, so as to quickly remove more impurities in the gas-liquid mixture through double sand removal and filtration.

[0060] In this process, the straight-through gate valve 2 in the straight-through pipeline system is in a closed state and is not connected; the sand gate valve 10 in the sand removal pipeline system is in a closed state and is not connected.

[0061] Among them, please refer to Figure 1 and Figure 2 In this embodiment, the sand-removal-filtering pipeline system includes the total gate valve one 4, the conveying pipe 5, the sand gate valve 7, the overflow pipe 9, the total gate valve two 11, the filter inlet gate valve 12, and the filter outlet gate valve 14.

[0062] Specifically, the total gate valve one 4, the conveying pipe 5, the cyclone sand remover main body 6, the sand gate valve 7, the sand storage cylinder 8, and the overflow pipe 9 belong to the pipeline system shared by the sand removal pipeline system and the sand-removal-filtering pipeline system, and no matter how many impurities are, the gas-liquid mixture will flow from the inflow pipe 1 through the total gate valve one 4, and then be removed by the cyclone sand remover main body 6, and then flow into the overflow pipe 9.

[0063] Specifically, in the process of conveying gas-liquid mixture with more impurities, the gas-liquid mixture after sand removal is introduced into the overflow pipe 9, the overflow pipe 9 is communicated with two sections of conveying pipes 5, one section of the conveying pipes 5 is communicated with the filter inlet gate valve 12, the other section of the conveying pipes 5 belongs to the filter pipeline system, at this time, the sand removal gate valve 10 on the conveying pipe 5 is closed and does not flow through, the filter inlet gate valve 12 is communicated with the inlet of the filter cartridge 13, the filter inlet gate valve 12 is opened, the gas-liquid mixture after sand removal is introduced into the filter cartridge 13 for filtration, and the more fine impurities are filtered out, then the clean gas-liquid mixture after filtration flows out from the outlet of the filter cartridge 13, the outlet of the filter cartridge 13 is communicated with the filter outlet gate valve 14, the filter outlet gate valve 14 is communicated with one end of one section of the conveying pipe 5, the other end of the section of the conveying pipe 5 is communicated with the total gate valve two 11, and the total gate valve two 11 is communicated with the outflow pipe 3; the filter outlet gate valve 14 and the total gate valve two 11 are opened, and the gas-liquid mixture after filtration in the filter cartridge 13 flows to the outflow pipe 3 and flows out, so that the gas-liquid mixture with more impurities is quickly sand-removed and filtered.

[0064] Preferably, in the embodiment, for different conveying conditions of the gas-liquid mixture, that is, the normal condition without or with less impurities and the harsh condition with more impurities, the cyclone sand remover and the filter cartridge 13 are cooperated to work, for the normal condition, only the cyclone sand remover main body 6 is used for impurity separation, so that the gas-liquid mixture with less impurities is quickly sand-removed; for the harsh condition, the cyclone sand remover main body 6 is used for separation of more large-particle impurities, the risk of blockage of the sand removal pipeline is reduced, and then the filter cartridge 13 is used for filtration of less fine impurities, so that the impurities that cannot be timely removed by the cyclone sand remover main body 6 are removed, and the gas-liquid mixture with more impurities is quickly sand-removed.

[0065] When the cyclone sand remover and the filter cartridge 13 work for a period of time, a large amount of impurities will accumulate in the sand storage cartridge 8 and the filter cartridge 13, in order to avoid that the impurities affect the normal sand removal work of the equipment, water needs to be injected into the sand removal cartridge and the filter cartridge 13 to flush the impurities in the sand storage cartridge and be discharged together.

[0066] Further, the sand removal pipeline system is arranged on the sand storage cartridge 8 and the filter cartridge 13, the sand removal cartridge and the filter cartridge 13 are both provided with a special water flushing port and a sand discharge port, the sand discharge port is communicated with the sand removal pipeline system; in the sand removal process, the external water pump pipe is communicated with the water flushing port, water flow is flushed into the sand storage cartridge 8 and the filter cartridge 13 to flush the impurities, and then the water flow flows into the sand discharge port and is discharged to the outside through the sand removal pipeline system, so that the sand removal and cleaning of the sand storage cartridge 8 and the filter cartridge 13 are realized.

[0067] In the sand removal process, all the gate valves in the straight-through pipeline system, the sand removal pipeline system and the sand removal-filter pipeline system are in the closed state, that is, at this time, the whole device does not carry out the sand removal work of the gas-liquid mixture and does not work.

[0068] Wherein, the sand discharge pipeline system includes flush gate valve one 15, conveying pipe 5, sand discharge gate valve 17, sand discharge pipe 18, flush gate valve three 20.

[0069] Specifically, please refer to Figure 1 and Figure 3 In this embodiment, the sand discharge pipeline system on the sand storage cylinder 8 is that the cylinder wall of the sand storage cylinder 8 is communicated with a flush port, the flush port is communicated with flush gate valve one 15, opening the flush gate valve one 15, the external pump water pipe is threadedly locked and communicated at the flush port, the sand storage cylinder 8 is flushed, the sand inside the sand storage cylinder 8 is washed, and the sand is mixed with the water flow; the cylinder bottom of the sand storage cylinder 8 is communicated with a sand discharge port, the sand discharge port is connected with one end of a section of conveying pipe 5, the conveying pipe 5 is communicated with sand discharge gate valve 17, the other end of the conveying pipe 5 is communicated with sand discharge pipe 18, opening the sand discharge valve gate, the water flow impurity mixture in the sand storage cylinder 8 flows out from the sand discharge port, and then is discharged into the outside from the sand discharge pipe 18, realizing the sand discharge work of the sand storage cylinder 8.

[0070] Specifically, please refer to Figure 2 and Figure 3 In this embodiment, the sand discharge pipeline system on the filter cylinder 13 is that the cylinder wall of the filter cylinder 13 is communicated with a flush port, the flush hole is communicated with flush gate valve three 20, opening the flush gate valve three 20, the external pump water pipe is threadedly locked and communicated at the flush port, the filter cylinder 13 is flushed, the sand inside the filter cylinder 13 is washed, and the sand is mixed with the water flow; the cylinder bottom of the filter cylinder 13 is communicated with a sand discharge port, the sand discharge port is connected with one end of a section of conveying pipe 5, the conveying pipe 5 is communicated with sand discharge gate valve 17, the other end of the conveying pipe 5 is communicated with sand discharge pipe 18, opening the sand discharge valve gate, the water flow impurity mixture in the filter cylinder 13 flows out from the sand discharge port, and then is discharged into the outside from the sand discharge pipe 18, realizing the sand discharge work of the filter cylinder 13.

[0071] It is worth mentioning that the sand discharge pipeline systems arranged on the sand storage cylinder 8 and the filter cylinder 13 are independent pipeline systems, are not communicated, and independently carry out the sand discharge work, avoiding the water flow impurity mixture in the two cylinders from being mixed, and affecting the sand discharge.

[0072] During the long-time sand removal work of the cyclone sand remover main body 6 and the filter cylinder 13, the gas-liquid mixture is pumped into the inlet pipe 1 by the external pumping equipment, and the sand removal work is carried out through the pipeline system, and then flows out from the outlet pipe 3, so that the pumping pressure exists in the conveying pipe 5 of the entire pipeline system, and when the entire equipment stops working, all the gate valves in the straight-through pipeline system, the sand removal pipeline system and the sand removal-filter pipeline system are in the closed state, so that the internal space of the cyclone sand remover main body 6, the internal space of the sand storage cylinder 8 and the internal space of the filter cylinder 13 connected by the conveying pipe 5 all have residual pumping pressure (the gas pressure or water pressure generated by the residual gas-liquid mixture in the internal space), in order to ensure the safety of the equipment and avoid damage caused by long-time pressure, it is necessary to vent the residual pressure in the equipment, but the internal space of the cyclone sand remover main body 6, the internal space of the sand storage cylinder 8 and the internal space of the filter cylinder 13 cannot be discharged through the existing valves, so a separate venting pipeline system is arranged on the three to carry out independent pressure venting work.

[0073] Further, the cyclone sand remover main body 6, the sand storage cylinder 8 and the filter cylinder 13 are respectively provided with gas outlets, and the three gas outlets are jointly connected with the venting pipeline system to carry out the exhaust work; when the equipment carries out the sand removal work of the gas-liquid mixture, the venting pipeline system is in the closed state and is not connected, so as to avoid the connection between the cyclone sand remover main body 6, the sand storage cylinder 8 and the filter cylinder 13.

[0074] Among them, please refer to Figure 2 and Figure 3 In this embodiment, the venting pipeline system includes a communication gate valve one 21, a sand passing valve gate, a conveying pipe 5, a communication gate valve two 22 and a gas outlet 23.

[0075] Specifically, the filter cylinder 13 is provided with a gas outlet, and the communication gate valve one 21 is fixedly arranged on the gas outlet, the communication gate valve one 21 is connected to one end of the conveying pipe 5, the other end of the conveying pipe 5 is connected with the communication gate valve two 22, and the communication gate valve two 22 is fixedly connected with the gas outlet arranged on the sand storage cylinder 8; opening the communication gate valve one 21 and the communication gate valve two 22 can connect the spaces in the filter cylinder 13 and the sand storage cylinder 8 to ventilate; the sand passing gate valve 7 is arranged between the bottom of the cyclone sand remover main body 6 and the top of the sand storage cylinder 8, and opening the sand passing gate valve 7 can connect the spaces in the cyclone sand remover main body 6 and the sand storage cylinder 8; the communication gate valve two 22 also connects another conveying pipe 5, and the end of the other conveying pipe 5 is connected with the gas outlet 23; during the exhaust venting process, the communication gate valve one 21, the communication gate valve two 22 and the sand passing gate valve 7 are opened, and the pressure gas in the filter cylinder 13, the cyclone sand remover main body 6 and the sand storage cylinder 8 all enters the gas outlet 23 through the communication gate valve two 22, and is discharged to the outside, so as to ensure that the internal space pressure is normal after the equipment stops working.

[0076] It is worth mentioning that when the device is working on the sand removal of the gas-liquid mixture, the communication gate valve 21 and the communication gate valve 22 are closed to avoid the communication between the sand storage cylinder 8, the filter cylinder 13 and the exhaust pipe, and the sand removal gate valve 7 is opened to communicate the sand removal cyclone body 6 and the sand storage cylinder 8, and store the separated impurities.

[0077] Embodiment 2

[0078] Because the device is used for sand removal and filtration of the gas-liquid mixture, the gas pumped also contains fine floating impurities, and after the gas-liquid mixture is pumped into the filter cylinder 13, the filter cylinder 13 is filtered by pumping, but when the gas-liquid mixture passes through the filter screen 133 with small pore size in the filter cylinder 13, the flow rate slows down, and the internal gas-liquid mixture begins to stagnate, so under the action of gravity, the gas-liquid separation phenomenon gradually begins to appear, the gas is lighter and stays in the upper part of the filter cylinder 13, and the liquid is heavier and stays in the lower part of the filter cylinder 13, at this time the filter cylinder 13 needs to filter the impurities in the separated gas and liquid at the same time, so as to realize the overall impurity filtration of the gas-liquid mixture.

[0079] Therefore, please refer to Figure 2 In this embodiment, the filter outlet 134 of the filter cylinder 13 is provided with two, which are located in the upper and lower parts of the filter cylinder 13 respectively.

[0080] Among them, the filter outlet 134 in the lower part of the filter cylinder 13 is communicated to the conveying pipe 5 provided with the flushing gate valve 20, and the conveying pipe 5 is directly communicated to the total gate valve 11; when the gas-liquid mixture is removed by the sand-removal and filtration pipeline system, the flushing gate valve 20 is opened, the separated liquid in the filter cylinder 13 is filtered through the filter screen 133, and then enters the total gate valve 11 through the pipeline provided with the flushing gate valve 20, and then flows out from the outflow pipe 3 communicated to the total gate valve 11, realizing the filtration of the liquid.

[0081] Among them, the filter outlet 134 in the upper part of the filter cylinder 13 is communicated to the conveying pipe 5 provided with the air vent valve, and the conveying pipe 5 is communicated to the conveying pipe 5 provided with the filter outlet gate valve 14, so as to be communicated to the total gate valve 11; when the gas-liquid mixture is removed by the sand-removal and filtration pipeline system, the air vent gate valve 19 is opened, the separated gas in the filter cylinder 13 is filtered through the filter screen 133, and then enters the conveying pipe 5 provided with the filter outlet gate valve 14 through the pipeline provided with the air vent gate valve 19, and then is discharged from the outflow pipe 3 communicated to the total gate valve 11, realizing the filtration of the gas.

[0082] It is worth mentioning that the separated gas and liquid in the filter cylinder 13 are mixed after being filtered, and then enter the conveying pipe 5 provided with the total gate valve 11 to form a gas-liquid mixture flowing out from the outflow pipe 3.

[0083] It is worth mentioning that in the embodiment, the flushing gate valve three 20 works as a gate valve in the sand-removing and filtering pipeline system and also works as a gate valve in the sand-removal pipeline system, and in both working processes, the flushing gate valve three 20 is in an open state.

[0084] Embodiment 3

[0085] Please refer to Figure 4 In the embodiment, the filter cartridge 13 includes a cartridge body 131, a filter cavity 132, a filter screen 133, a filtering outlet 134, a gas outlet 135, and a water outlet 136.

[0086] Specifically, the cartridge body 131 is internally provided with the filter cavity 132, and the upper end of the cartridge body 131 is connected to the upper end of the conveying pipe 5 provided with the filtering inlet gate valve 12, so that the gas-liquid mixture is introduced into the cartridge body 131 from the top end thereof; and the filter screen 133 cylinder is fixedly arranged in the filter cavity 132, the filter screen 133 cylinder is provided with the filter screen 133 on the cylinder wall thereof, the top end of the filter screen 133 cylinder is a through opening, and the filter screen 133 cylinder is matched with the filter cavity 132 in shape, so that the gas-liquid mixture introduced into the cartridge body 131 is directly introduced into the through opening at the top end of the filter screen 133 cylinder and then enters the filter screen 133 cylinder from the through opening at the top end of the filter screen 133 cylinder, and then the impurities are left in the filter screen 133 cylinder after being filtered by the filter screen 133, and the filtered gas-liquid mixture is discharged out of the filter screen 133 cylinder, thereby realizing impurity filtering.

[0087] Specifically, the cartridge body 131 is provided with two filtering outlets 134 penetrating the upper and lower portions of the cylinder wall thereof, respectively, the filtering outlets 134 are connected to the filter cavity 132 and are located at the upper and lower portions of the filter screen 133 cylinder in the filter cavity 132, respectively, so that the gas and liquid in the filter screen 133 cylinder after being layered are filtered and conveyed to the two filtering outlets 134 connected to the air gate valve 19 and the flushing gate valve three 20, respectively, to filter the gas and liquid, respectively.

[0088] Specifically, the cartridge body 131 is further connected to the water outlet 136 at the bottom thereof, the water outlet 136 is connected to the conveying pipe 5 provided with the sand-removal gate valve 17, and the bottom end of the filter screen 133 cylinder is also provided with a through opening, and therefore, when the filter cartridge 13 performs the flushing and sand-removal work, the sand-removal gate valve 17 is opened, the flushing gate valve three 20 is opened, the external water flow is introduced into the filter screen 133 cylinder from the filtering outlet 134 at the lower portion of the cartridge body 131 to flush the impurities, and then the water flow and impurity mixture is introduced into the water outlet 136 from the through opening at the bottom of the filter screen 133 cylinder, and then is discharged from the sand-removal pipe opening 18 connected to the sand-removal gate valve 17, thereby realizing the sand-removal work.

[0089] Embodiment 4

[0090] Because the layered gas and liquid in the filter cartridge 13 are filtered out from two filter outlets 134 respectively, in the long sand removal process, the impurities filtered out and attached on the filter screen 133 are more and more, until the filter screen 133 of the upper filter outlet 134 for filtering out gas is completely blocked, at this time, the gas with greatly reduced filtering amount is accumulated in the filter cavity 132 and cannot be discharged, under the action of pump pressure, the accumulated gas generates a large gas pressure, the large pressure acts on the filter cartridge 13, causing damage to the filter cartridge 13, therefore, when the filter screen 133 is blocked, the pressure difference between both ends of the filter outlet 134 needs to be balanced to avoid damage to the equipment.

[0091] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 In the embodiment, the filter cartridge 13 further comprises a gas filter 25; the conveying pipe 5 way provided with the venting gate valve 19 comprises a venting straight pipe 191 and a venting flow pipe 192.

[0092] Specifically, the upper part of the cartridge body 131 is further provided with a venting port, the venting port is located in the filter cavity 132 and above the filter screen 133, the venting port is communicated with the venting flow pipe 192, the venting flow pipe 192 is communicated with the pipeline provided with the filter outlet gate valve 14, and the filter outlet 134 of the filtered gas in the upper part of the cartridge body 131 is communicated with the venting straight pipe 191, the venting straight pipe 191 is also communicated with the pipeline provided with the filter outlet gate valve 14; in the process of filtering the layered gas and liquid in the filter cartridge 13, the gas is discharged from the venting port and the upper filter outlet 134 at the same time, when the filter screen 133 of the upper filter outlet 134 is blocked, the venting port located outside the filter screen 133 is still communicated with the filter cavity 132 and the conveying pipe 5 way outside the upper filter outlet 134, thereby ensuring that the pressure difference between the inside and outside of the filter cartridge 13 is consistent.

[0093] Specifically, the venting port is further provided with a gas filter 25, the gas for venting is also filtered to ensure that the conveying pipe 5 way at the venting position does not contain impurities.

[0094] The gas filter 25 comprises a mounting cylinder 251 and a filter core 252.

[0095] The mounting cylinder 251 is fixed in the venting port, a layer of filter core 252 is screwed in the mounting cylinder 251, the filter hole diameter of the filter core 252 is smaller than that of the filter screen 133, and the filter core 252 can be disassembled and replaced through the screw threadedly connected with the mounting cylinder 251.

[0096] In the process of filtering gas from the filter cartridge 13, because the filter screen 133 has a large pore size, the gas flow is too large, so that most of the gas is discharged from the upper filter outlet 134. Because the air inlet is located outside the filter screen 133 cartridge, the gas entering the filter cavity 132 through the air inlet has been filtered by the filter screen 133 of the filter screen 133 cartridge. When the filtered gas passes through the filter core 252 of the air inlet, it can not only avoid the blockage of the filter core 252 with small pore size, but also still connect the filter outlet 134 when the filter screen 133 of the filter outlet 134 is blocked, and balance the pressure difference.

[0097] It is worth noting that in the process of filtering gas from the filter cartridge 13, when the filter screen 133 is not blocked, the gas will be discharged from the filter outlet 134 with large pore size under pressure, so the air inlet straight flow pipe 191 connected to the filter outlet 134 is the main gas conveying pipe 5, and the air inlet connected to the air inlet is the auxiliary gas conveying pipe 5. When the filter screen 133 of the filter outlet 134 is blocked, because the gas flow from the filter outlet 134 is large, the attachment speed of impurities is much faster than that of other filter screens 133, so when the filter screen 133 of the filter outlet 134 is blocked, the filter screen 133 of the filter cavity 132 has not been blocked, so the accumulated gas is squeezed into the filter cavity 132 outside the filter screen 133 cartridge, and is discharged from the air inlet with small pore size under pressure. At this time, the air inlet connected to the air inlet is a conveying pipe 5 for balancing the pressure difference, and also a conveying pipe 5 for gas filtering.

[0098] Example 5

[0099] Please refer to Figure 1 In this embodiment, the device is provided with two inlet pipes 1, two outlet pipes 3, two straight flow gate valves, and the inlet pipes 1 are connected in parallel between each other (the outlet pipes 3 are connected in parallel between each other), and the inlet pipes 1, the straight flow gate valves and the outlet pipes 3 are connected in series with each other, so as to increase the conveying flow of the gas-liquid mixture by using multiple inlet channels and multiple outlet channels.

[0100] Example 6

[0101] Please refer to Figure 1 and Figure 3 In this embodiment, the sand discharge pipeline system of the sand storage cartridge 8 further includes a flushing gate valve 16.

[0102] Specifically, the upper and lower parts of the sand storage cylinder 8 are respectively provided with a flushing port, the upper flushing port is communicated with a flushing gate valve 15, and the lower flushing port is communicated with a flushing gate valve 16. During the sand discharging process of the sand storage cylinder 8, the sand storage cylinder 8 is the main sand storage position, and therefore the impurities in the cylinder are the most. When flushing from one position of the sand storage cylinder 8, a long time of flushing is needed to discharge the impurities in the cylinder. Therefore, flushing is simultaneously performed on the upper and lower parts of the sand storage cylinder 8. The lower flushing disperses the more and more compact impurities accumulated at the bottom of the sand storage cylinder 8 and discharges them from the bottom, and then forms a cavity at the lower part. Then, the upper flushing disperses the less and more loose impurities accumulated at the upper part of the sand storage cylinder 8, and the impurities are added with water to increase the weight, so as to collapse into the cavity at the lower part and be carried into the bottom by the water flow to be discharged, thereby realizing the rapid sand discharging work of the impurities in the sand storage cylinder 8.

[0103] Example 7

[0104] Please refer to Figure 2 and Figure 3 In this embodiment, the throttling valve 24 is arranged in the sand discharging pipeline system and the venting pipeline system, which is used to control the discharging flow rate during sand discharging and venting, so as to avoid that the discharging flow rate is too large to affect the safety of the external environment.

[0105] Specifically, in the sand discharging pipeline system, the throttling valve 24 is arranged on the conveying pipe 5 connected with the sand discharging gate valve 17 and the sand discharging pipe 18. When the sand discharging work is performed, the sand discharging gate valve 17 is opened, and the water flow and impurities are mixed and then discharged from the sand discharging pipe 18 to the outside through the flow limiting of the throttling valve 24.

[0106] Specifically, in the venting pipeline system, the throttling valve 24 is arranged on the conveying pipe 5 connected with the communication gate valve 22 and the venting pipe 23. When the venting work is performed, the communication gate valve 22 is opened, and the gas is discharged from the venting pipe 23 to the outside through the flow limiting of the throttling valve 24.

[0107] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions of the present application according to the above description, and the scope of the present application is defined by the appended claims.

Claims

1. A cyclone desander with filter cartridge, comprising a cyclone desander body (6), characterized in that: the cyclone desander body (6) is respectively communicated with an inlet pipe (1), a sand storage cartridge (8), a filter cartridge (13) and an outlet pipe (3) through a pipeline system; the pipeline system comprises a straight-through pipeline system, a desanding pipeline system, a desanding-filtering pipeline system, a sand discharge pipeline system and a venting pipeline system; the straight-through pipeline system comprises a straight-through gate valve (2) and a conveying pipe (5), and the straight-through gate valve (2) is arranged on the conveying pipe (5) which is communicated between the inlet pipe (1) and the outlet pipe (3); the desanding pipeline system is that the inlet pipe (1) is communicated with the top of the cyclone desander body (6) through the conveying pipe (5), the bottom of the cyclone desander body (6) is communicated with the sand storage cartridge (8), and the overflow port of the top of the cyclone desander body (6) is communicated with the outlet pipe (3) through the conveying pipe (5); the desanding-filtering pipeline system is that the inlet pipe (1) is communicated with the top of the cyclone desander body (6) through the conveying pipe (5), the bottom of the cyclone desander body (6) is communicated with the sand storage cartridge (8), the overflow port of the top of the cyclone desander body (6) is communicated with the outlet pipe (3) through the conveying pipe (5), and the filter cartridge (13) is arranged on the conveying pipe (5) between the overflow port and the outlet pipe (3); the sand storage cartridge (8) and the filter cartridge (13) are respectively provided with the sand discharge pipeline system; the cyclone desander body (6), the sand storage cartridge (8) and the filter cartridge (13) are jointly provided with the venting pipeline system; the sand discharge pipeline system of the sand storage cartridge (8) is that a flushing port is communicated on the wall of the sand storage cartridge (8), the flushing port is communicated with an external pump water pipe, and a sand discharge port is communicated at the bottom of the sand storage cartridge (8); the sand discharge pipeline system of the filter cartridge (13) is that a flushing port is communicated on the wall of the filter cartridge (13), the flushing port is communicated with an external pump water pipe, and a sand discharge port is communicated at the bottom of the filter cartridge (13); the venting pipeline system is that the filter cartridge (13) and the sand storage cartridge (8) are respectively provided with a gas outlet, the two gas outlets are communicated through the conveying pipe (5), the top of the sand storage cartridge (8) is communicated with the inside of the cyclone desander body (6), the conveying pipe (5) is communicated with one end of a communication gate valve two (22), and the other end of the communication gate valve two (22) is communicated with a gas discharge pipe (23); the sand discharge pipeline system of the sand storage cartridge (8) comprises a flushing gate valve one (15) and a flushing gate valve two (16); the upper part and the lower part of the sand storage cartridge (8) are respectively provided with a flushing port, the upper flushing port is communicated with the flushing gate valve one (15), the lower flushing port is communicated with the flushing gate valve two (16), the two flushing ports are both communicated with the external pump water pipe, and the flushing gate valve one (15) and the flushing gate valve two (16) are both located between the flushing ports and the external pump water pipe.

2. A hydrocyclone desander with filter cartridge according to claim 1, characterized in that the filter cartridge (13) is provided with two filter outlets (134), which are respectively located at the upper part and the lower part of the filter cartridge (13), and the two filter outlets (134) are both communicated into the same conveying pipe (5), and the conveying pipe (5) is communicated with the outlet pipe (3).

3. A hydrocyclone desander with a filter cartridge according to claim 2, characterized in that The filter cartridge (13) comprises a cartridge body (131) provided with a filter cavity (132) inside, an upper end of the cartridge body (131) is connected with a filter inlet, and a filter screen cartridge is fixedly arranged in the filter cavity (132), the cartridge wall of the filter screen cartridge is provided with filter screens (133), and the top end of the filter screen cartridge is a through opening, and the filter inlet is communicated with the through opening at the top end of the filter screen cartridge. Two filter outlets (134) are respectively arranged on the upper and lower portions of the cartridge wall of the cartridge body (131) and are respectively located at the upper and lower portions of the filter screen cartridge in the filter cavity (132).

4. A hydrocyclone desander with a filter cartridge according to claim 3, characterized in that An air vent is further arranged on the upper portion of the cartridge body (131), the air vent is located in the filter cavity (132) and above the filter screen cartridge, and the air vent is respectively communicated with the conveying pipe (5) outside the filter outlet (134) and the filter cavity (132). A gas filter (25) is further arranged at the air vent.

5. A hydrocyclone desander with a filter cartridge according to claim 4, characterized in that The gas filter (25) comprises a mounting cartridge (251) and a filter core (252). The mounting cartridge (251) is fixed in the air vent, a layer of filter core (252) is threadedly mounted in the mounting cartridge (251), and the filter hole diameter of the filter core (252) is smaller than that of the filter screen (133) on the filter screen cartridge.

6. A hydrocyclone desander with a filter cartridge according to claim 1, characterized in that The upper portions of the cyclone sand remover main bodies (6) are jointly communicated with two inflow pipes (1) through the conveying pipes (5), the overflow openings at the top ends of the cyclone sand remover main bodies (6) are jointly communicated with two outflow pipes (3) through the conveying pipes (5), and the inflow pipes (1) and the outflow pipes (3) are parallel to each other. The inflow pipes (1), the straight-through gate valves and the outflow pipes (3) are sequentially connected in series.

7. A hydrocyclone desander with a filter cartridge according to claim 1, characterized in that Throttle valves (24) are arranged in the sand discharge pipeline system and the venting pipeline system. In the sand discharge pipeline system, the throttle valve (24) is arranged in the sand discharge opening. In the venting pipeline system, the throttle valve (24) is arranged on the conveying pipe (5) connected with the communication gate valve II (22) and the air outlet (23).

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