Basket filter and operation method thereof

Abstract

The invention relates to a basket filter and an operation method thereof. The basket filter comprises a filter shell, a dirty oil collecting device, a filter box, an exhaust control device, an emptying pipeline and a blow-off pipeline, the filter box is fixedly arranged at the inner top of the filter shell, and an exhaust control device is arranged on the filter box; the exhaust control device is used for controlling automatic exhaust of the filter; a dirty oil collecting device is arranged on the outer side of the filter shell, the top of the filter shell is connected with the dirty oil collecting device through an emptying pipeline, and the bottom of the filter shell is connected with the dirty oil collecting device through a pollution discharge pipeline. The exhaust control device is arranged, so that connection or disconnection of signals in the control signal box can be realized through the floating ball according to the height of the liquid level in the filter, and therefore, when gas exists in a medium, the liquid level in the filter drops, and the connecting rod pushes the ejector pin to slide upwards in the control signal box under the dead weight of the floating ball; and then the spring shifting piece and the contact are pushed to be closed, the first valve is opened, the gas-containing medium is discharged into the dirty oil tank through the exhaust pipeline, and automatic exhaust operation is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of basket filter equipment, and in particular relates to a basket filter and an operating method thereof. Background Art

[0002] At present, filter products on the market are relatively mature, and there are many types of products. Basket filters are widely used and easy to use and maintain, so the filters used in the petrochemical industry are often basket filters. However, at this stage, basket filters used in the petrochemical field are often common products in the market, and the characteristics of the conveying medium in the petrochemical field are not taken into account. Therefore, different problems arise during use due to changes in the components of the medium. For example, a certain gathering and transportation station of the Tarim Oilfield Branch has a large number of light components in crude oil and a large amount of gas in the medium. The basket filter used has no exhaust function, resulting in frequent evacuation of the downstream centrifugal pump, which brings difficulties to production organization. In order to prevent such incidents from happening, the frequency of evacuation of the downstream unit can only be reduced by manually exhausting the filter at a fixed time. This measure not only increases the labor intensity of on-site employees, but also increases the risk of oil and gas poisoning among employees because the discharged medium contains flammable, suffocating, and toxic gases, which poses a hidden danger to the health of employees. Summary of the invention

[0003] The object of the present invention is to provide a basket filter and an operating method thereof, so as to solve the problem that the prior art has no exhaust function, resulting in frequent evacuation of the downstream centrifugal pump.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A basket filter comprises a filter housing, a dirty oil collection device, a filter box, an exhaust control device, an emptying pipeline and a sewage pipeline; the filter box is fixedly arranged on the inner top of the filter housing, and the filter box is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outside of the filter housing, the top of the filter housing is connected to the dirty oil collection device through the emptying pipeline, and the bottom of the filter housing is connected to the dirty oil collection device through the sewage pipeline.

[0006] Furthermore, the exhaust control device includes a control signal box, a connecting rod hinge seat, a connecting rod and a float; the connecting rod hinge seat is arranged at the bottom of the filter box, and a connecting rod is hinged on the connecting rod hinge seat. One end of the connecting rod is condensed with the float, and the other end is connected to the control signal box. The control signal box is arranged on the top of the filter housing in the filter box.

[0007] Furthermore, the control signal box includes a shell, a spring paddle, a signal line, a contact and a ejector pin; a contact is arranged on one side of the inner top of the shell, and a spring paddle is arranged on the other side; an opening is arranged on the inner bottom of the shell, and an ejector pin is arranged in the opening, one end of the ejector pin is connected to the spring paddle, and the other end is connected to the connecting rod; the contact and the spring paddle are connected to the external valve control unit through the signal line.

[0008] Furthermore, a sealing member is provided at the inner bottom opening of the shell, and the ejector pin is provided in the sealing member.

[0009] Furthermore, a first valve and a second valve are sequentially arranged on the exhaust pipeline.

[0010] Furthermore, a third valve is arranged on the sewage pipeline; the first valve, the second valve and the third valve are all connected to the valve control unit.

[0011] Furthermore, the dirty oil collection device includes a dirty oil tank, a centrifugal pump, a second breathing valve, an external transmission pipeline and a tanker truck; the drain pipeline and the sewage pipeline are both connected to the dirty oil tank; the dirty oil tank is connected to the external transmission pipeline, the external transmission pipeline is connected to the centrifugal pump, and the centrifugal pump is connected to the tanker truck.

[0012] Furthermore, the filter housing comprises a housing body and a filter top flange, wherein the filter top flange is fixedly arranged on the top of the housing body; an inlet pipeline and an outlet pipeline are respectively arranged on both sides of the filter housing, and a filter element is arranged in the filter housing.

[0013] Furthermore, the density of the float is 0.5-0.7g / cm 3 The radius is between 40-75mm and the weight is between 1-2kg; the ratio of the distance between the connecting rod hinge seat and the float and the distance between the thimble is 2 / 1, and the total length of the connecting rod is not more than 300mm and the weight does not exceed 1kg.

[0014] Further, a method for operating a basket filter comprises the following steps:

[0015] When the medium contains gas, the liquid level in the filter drops, and the connecting rod pushes the ejector pin to slide upward in the control signal box under the deadweight of the float, and then pushes the spring paddle and the contact to close, and then the valve opening circuit of the first valve is connected, the first valve opens, and the gas-containing medium is discharged into the waste oil tank through the exhaust pipeline, thereby realizing the automatic exhaust operation of the filter; the second valve remains normally open;

[0016] When the exhaust is finished or the medium itself does not contain gas, the liquid level in the filter is at a high level. The float pulls the ejector pin to slide downward in the control signal box under the action of buoyancy, and then the spring pick is separated from the contact. Then the valve closing circuit of the first valve is turned on, the first valve is closed, and the automatic exhaust is finished.

[0017] When the filter needs to discharge waste, the third valve is opened remotely or manually, and the waste oil enters the waste oil tank.

[0018] Compared with the prior art, the present invention has the following technical effects:

[0019] The present invention provides an exhaust control device, which includes a control signal box, a connecting rod hinge seat, a connecting rod and a float. The device can realize the conduction or disconnection of the signal in the control signal box through the float according to the liquid level height in the filter, so that when there is gas in the medium, the liquid level in the filter drops, and the connecting rod pushes the ejector pin to slide upward in the control signal box under the dead weight of the float, and then pushes the spring paddle and the contact to close, and then the valve opening circuit of the first valve is connected, the first valve is opened, and the gas-containing medium is discharged into the dirty oil tank through the exhaust pipeline, and the filter is automatically exhausted. The present invention is a special filter for different media and suitable for special environments, which solves the problem that the filter cannot be automatically exhausted and reduces production risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the control signal box structure;

[0022] Figure 3 It is a schematic diagram of the filter top flange and filter box structure.

[0023] Among them, 1-filter housing, 2-inlet pipeline, 3-filter element, 4-float, 5-filter box, 6-connecting rod, 7-connecting rod hinge, 8-control signal box, 9-drain pipeline, 10-filter top flange, 11-outlet pipeline, 12-drain pipeline, 13-dirty oil tank, 14-spring pick, 15-signal line, 16-signal line, 17-contact, 18-thimble, 19-seal, 20-centrifugal pump, 21-tank truck, 22-breathing valve, 23-external transmission pipeline, 24-first valve, 25-second valve, 26-third valve. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Embodiment 1:

[0028] A basket filter comprises a filter housing 1, a dirty oil collection device, a filter box 5, an exhaust control device, an emptying pipeline 9 and a sewage pipeline 12; the filter box 5 is fixedly arranged on the inner top of the filter housing 1, and the filter box 5 is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outside of the filter housing 1, the top of the filter housing 1 is connected to the dirty oil collection device through the emptying pipeline 9, and the bottom of the filter housing 1 is connected to the dirty oil collection device through the sewage pipeline 12.

[0029] The present invention provides an exhaust control device, which includes a control signal box, a connecting rod hinge seat, a connecting rod and a floating ball. The device can realize the connection or disconnection of the signal in the control signal box through the floating ball according to the liquid level height in the filter, so that when there is gas in the medium, the liquid level in the filter drops, and the connecting rod pushes the ejector pin to slide upward in the control signal box under the dead weight of the floating ball, and then pushes the spring paddle and the contact to close, and then the valve opening circuit of the first valve is connected, the first valve is opened, and the gas-containing medium is discharged into the dirty oil tank through the exhaust pipeline, and the filter is automatically exhausted.

[0030] Embodiment 2:

[0031] A basket filter comprises a filter housing 1, a dirty oil collection device, a filter box 5, an exhaust control device, an emptying pipeline 9 and a sewage pipeline 12; the filter box 5 is fixedly arranged on the inner top of the filter housing 1, and the filter box 5 is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outside of the filter housing 1, the top of the filter housing 1 is connected to the dirty oil collection device through the emptying pipeline 9, and the bottom of the filter housing 1 is connected to the dirty oil collection device through the sewage pipeline 12.

[0032] The exhaust control device includes a control signal box 8, a connecting rod hinge seat 7, a connecting rod 6 and a float 4; the connecting rod hinge seat 7 is arranged at the bottom of the filter box 5, and the connecting rod 6 is hinged on the connecting rod hinge seat 7. One end of the connecting rod 6 condenses the float 4, and the other end is connected to the control signal box 8. The control signal box 8 is arranged on the top of the filter housing 1 in the filter box 5.

[0033] See attached Figure 1 and 3 : The connecting rod hinge seat 7 is fixedly connected to the filter box 5, the filter box 5 is fixedly connected to the filter top flange 10, the filter top flange 10 is flange-connected to the filter 1, the first valve 24 and the second valve 25 are connected to the drain line 9 through the flange, wherein the first valve 24, the second valve 25 and the third valve 26 have a remote operation function;

[0034] See attached Figure 1 and 2 : One end of the connecting rod 6 is fixedly connected to the float 4, and the other end is fixedly connected to the ejector pin 18. The ejector pin 18 can slide up and down in the control signal box 8 and is sealed by the seal 19;

[0035] See attached Figure 1 : The density of the float 4 is between 0.5-0.7g / cm3, the radius is between 40-75mm, and the weight is between 1-2kg; the ratio of the distance between the connecting rod hinge seat 7 and the float 4 to the distance between the connecting rod hinge seat 7 and the ejector pin 18 is 2 / 1, and the total length of the connecting rod 6 is not more than 300mm, and the weight does not exceed 1kg;

[0036] Embodiment 3:

[0037] A basket filter comprises a filter housing 1, a dirty oil collection device, a filter box 5, an exhaust control device, an emptying pipeline 9 and a sewage pipeline 12; the filter box 5 is fixedly arranged on the inner top of the filter housing 1, and the filter box 5 is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outside of the filter housing 1, the top of the filter housing 1 is connected to the dirty oil collection device through the emptying pipeline 9, and the bottom of the filter housing 1 is connected to the dirty oil collection device through the sewage pipeline 12.

[0038] The exhaust control device includes a control signal box 8, a connecting rod hinge seat 7, a connecting rod 6 and a float 4; the connecting rod hinge seat 7 is arranged at the bottom of the filter box 5, and the connecting rod 6 is hinged on the connecting rod hinge seat 7. One end of the connecting rod 6 condenses the float 4, and the other end is connected to the control signal box 8. The control signal box 8 is arranged on the top of the filter housing 1 in the filter box 5.

[0039] The control signal box 8 includes a shell, a spring paddle 14, a signal line 15, a contact 17 and a pin 18; a contact 17 is provided on one side of the inner top of the shell, and a spring paddle 14 is provided on the other side; an opening is provided on the inner bottom of the shell, and a pin 18 is provided in the opening, one end of the pin 18 is connected to the spring paddle 14, and the other end is connected to the connecting rod 6; the contact 17 and the spring paddle 14 are both connected to the external valve control unit through the signal line 15.

[0040] A sealing member 19 is provided at the inner bottom opening of the housing, and the ejector pin 18 is provided in the sealing member 19 .

[0041] The exhaust line 9 is provided with a first valve 24 and a second valve 25 in sequence.

[0042] A third valve 26 is provided on the sewage pipeline 12; the first valve 24, the second valve 25 and the third valve 26 are all connected to the valve control unit.

[0043] See attached Figure 2 : The control signal box 8 is fixedly connected to the top flange 10 of the filter, on which a spring paddle 14 and a contact 17 are fixedly mounted, and the spring paddle 14 and the contact 17 are respectively connected to a signal line 15 and a signal line 16; the signal lines 15 and 16 control the switch circuit of the first valve 24;

[0044] See attached Figure 1 : The third valve 26 is connected to the flange of the sewage pipeline 12 at the bottom of the filter 1, and the sewage pipeline 12 and the emptying pipeline 9 are sealed and connected to the dirty oil tank 13; the second breathing valve 252 and the external transmission pipeline 23 are fixedly installed on the dirty oil tank 13;

[0045] See attached Figure 2 : The control signal box 8 and the first valve 24 form a switch logic control. When the spring paddle 14 and the contact 17 are closed, the first valve 24 is opened. When the spring paddle 14 and the contact 17 are disconnected, the first valve 24 is closed.

[0046] Embodiment 4:

[0047] A basket filter comprises a filter housing 1, a dirty oil collection device, a filter box 5, an exhaust control device, an emptying pipeline 9 and a sewage pipeline 12; the filter box 5 is fixedly arranged on the inner top of the filter housing 1, and the filter box 5 is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outside of the filter housing 1, the top of the filter housing 1 is connected to the dirty oil collection device through the emptying pipeline 9, and the bottom of the filter housing 1 is connected to the dirty oil collection device through the sewage pipeline 12.

[0048] The exhaust control device includes a control signal box 8, a connecting rod hinge seat 7, a connecting rod 6 and a float 4; the connecting rod hinge seat 7 is arranged at the bottom of the filter box 5, and the connecting rod 6 is hinged on the connecting rod hinge seat 7. One end of the connecting rod 6 condenses the float 4, and the other end is connected to the control signal box 8. The control signal box 8 is arranged on the top of the filter housing 1 in the filter box 5.

[0049] The control signal box 8 includes a shell, a spring paddle 14, a signal line 15, a contact 17 and a pin 18; a contact 17 is provided on one side of the inner top of the shell, and a spring paddle 14 is provided on the other side; an opening is provided on the inner bottom of the shell, and a pin 18 is provided in the opening, one end of the pin 18 is connected to the spring paddle 14, and the other end is connected to the connecting rod 6; the contact 17 and the spring paddle 14 are both connected to the external valve control unit through the signal line 15.

[0050] A sealing member 19 is provided at the inner bottom opening of the housing, and the ejector pin 18 is provided in the sealing member 19 .

[0051] The exhaust line 9 is provided with a first valve 24 and a second valve 25 in sequence.

[0052] A third valve 26 is provided on the sewage pipeline 12; the first valve 24, the second valve 25 and the third valve 26 are all connected to the valve control unit.

[0053] The dirty oil collection device includes a dirty oil tank 13, a centrifugal pump 20, a second breathing valve 252, an external transmission pipeline 23 and a tanker truck 21; the emptying pipeline 9 and the sewage pipeline 12 are both connected to the dirty oil tank 13; the dirty oil tank 13 is connected to the external transmission pipeline 23, the external transmission pipeline 23 is connected to the centrifugal pump 20, and the centrifugal pump 20 is connected to the tanker truck 21.

[0054] Refer to the attached Figure 1 : The external transmission pipeline is flange-mounted with valve 4, centrifugal pump 20, valve 5 and tanker 21 in sequence;

[0055] Embodiment 5:

[0056] A method for operating a basket filter

[0057] When the medium contains gas: the liquid level in the filter drops when the medium contains gas, and the connecting rod pushes the ejector pin to slide upward in the control signal box under the deadweight of the float, and then pushes the spring paddle and the contact to close, and then the valve opening circuit of the first valve 24 is turned on, the first valve 24 opens, and the gas-containing medium is discharged into the waste oil tank through the exhaust pipeline, thereby realizing the automatic exhaust operation of the filter; the second valve 25 should be kept open, which can be operated remotely or manually on site;

[0058] The medium does not contain gas: when the exhaust is finished or the medium itself does not contain gas, the liquid level in the filter is at a high level, and the float pulls the ejector pin to slide downward in the control signal box under the action of buoyancy, and then the spring paddle is separated from the contact, and then the valve closing circuit of the first valve 24 is turned on, the first valve 24 is closed, and the automatic exhaust is finished;

[0059] When the filter needs to discharge waste: remotely or manually open the third valve 26, and the waste oil enters the waste oil tank;

[0060] The waste oil recovery method is as follows: when the waste oil in the waste oil tank needs to be transported or delivered, valve 4 is opened manually, the centrifugal pump is started, and the waste oil passes through valve 5 and is transported to the waste oil recovery vehicle after being pressurized.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A basket filter, characterized in that: The invention comprises a filter housing (1), a dirty oil collection device, a filter box (5), an exhaust control device, an exhaust pipeline (9) and a sewage pipeline (12); the filter box (5) is fixedly arranged on the inner top of the filter housing (1), and the filter box (5) is provided with an exhaust control device; the exhaust control device is used to control the automatic exhaust of the filter; the dirty oil collection device is arranged on the outer side of the filter housing (1), the top of the filter housing (1) is connected to the dirty oil collection device through the exhaust pipeline (9), and the bottom of the filter housing (1) is connected to the dirty oil collection device through the sewage pipeline (12).

2. A basket filter according to claim 1, characterized in that: The exhaust control device comprises a control signal box (8), a connecting rod hinge seat (7), a connecting rod (6) and a floating ball (4); the connecting rod hinge seat (7) is arranged at the bottom of the filter box (5), the connecting rod (6) is hinged on the connecting rod hinge seat (7), one end of the connecting rod (6) is condensed with the floating ball (4), and the other end is connected to the control signal box (8), and the control signal box (8) is arranged at the top of the filter housing (1) in the filter box (5).

3. A basket filter according to claim 2, characterized in that: The control signal box (8) comprises a housing, a spring pick (14), a signal line (15), a contact (17) and an ejector pin (18); the contact (17) is arranged on one side of the inner top of the housing, and the spring pick (14) is arranged on the other side; the inner bottom of the housing is arranged with an opening, and an ejector pin (18) is arranged in the opening, one end of the ejector pin (18) is connected to the spring pick (14), and the other end is connected to the connecting rod (6); the contact (17) and the spring pick (14) are both connected to an external valve control unit via a signal line (15).

4. A basket filter according to claim 3, characterized in that: A sealing member (19) is arranged at the inner bottom opening of the shell, and the ejector pin (18) is arranged in the sealing member (19).

5. A basket filter according to claim 3, characterized in that: A first valve (24) and a second valve (25) are sequentially arranged on the exhaust pipeline (9).

6. A basket filter according to claim 5, characterized in that: A third valve (26) is arranged on the sewage discharge pipeline (12); the first valve (24), the second valve (25) and the third valve (26) are all connected to a valve control unit.

7. A basket filter according to claim 1, characterized in that: The waste oil collection device comprises a waste oil tank (13), a centrifugal pump (20), a second breathing valve (252), an external transmission pipeline (23) and an oil tank truck (21); the drain pipeline (9) and the sewage pipeline (12) are both connected to the waste oil tank (13); the waste oil tank (13) is connected to the external transmission pipeline (23), the external transmission pipeline (23) is connected to the centrifugal pump (20), and the centrifugal pump (20) is connected to the oil tank truck (21).

8. A basket filter according to claim 1, characterized in that: The filter housing (1) comprises a housing body and a filter top flange (10), wherein the filter top flange (10) is fixedly arranged on the top of the housing body; an inlet pipeline (2) and an outlet pipeline (11) are respectively arranged on both sides of the filter housing (1), and a filter element (3) is arranged inside the filter housing (1).

9. A basket filter according to claim 1, characterized in that: The density of the float (4) is 0.5-0.7g / cm 3 The radius is between 40-75mm and the weight is between 1-2kg; the ratio of the distance between the connecting rod hinge seat (7) and the float (4) to the distance between the connecting rod hinge seat (18) is 2 / 1, and the total length of the connecting rod (6) is not more than 300mm and the weight does not exceed 1kg.

10. A method for operating a basket filter, characterized in that: A basket filter according to any one of claims 1 to 9, comprising the following steps: When the medium contains gas, the liquid level in the filter drops, and the connecting rod pushes the ejector pin to slide upward in the control signal box under the deadweight of the float, and then pushes the spring paddle and the contact to close, and then the valve opening circuit of the first valve is connected, the first valve opens, and the gas-containing medium is discharged into the waste oil tank through the exhaust pipeline, thereby realizing the automatic exhaust operation of the filter; the second valve remains normally open; When the exhaust is finished or the medium itself does not contain gas, the liquid level in the filter is at a high level. The float pulls the ejector pin to slide downward in the control signal box under the action of buoyancy, and then the spring pick is separated from the contact. Then the valve closing circuit of the first valve is turned on, the first valve is closed, and the automatic exhaust is finished. When the filter needs to discharge waste, the third valve is opened remotely or manually, and the waste oil enters the waste oil tank.

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