Filter type metering pump front end pipeline
By using a V-shaped thick and thin filter combined structure in the front end pipeline of the metering pump, the blockage problem caused by impurities accumulation in the metering pump is solved, the number of filter cleaning times is reduced, and the production efficiency is improved.
Patent Information
- Application Number
- CN202420023353.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-01-04
AI Technical Summary
When the existing metering pumps convey agents containing impurities such as sludge, particles, etc., it is prone to blockage due to impurities accumulation, affecting production efficiency, and the existing filtration devices need to be frequently cleaned or replaced.
A filter metering pump front end pipeline is designed, adopting a V-shaped structure of coarse filter and fine filter. The coarse filter is combined with the fine filter. The depth of the fine filter is greater than that of the coarse filter. The filter is set on the sealing gasket. Between, through bolt connection, ensure the classification filtering and effective collection of impurities.
It effectively avoids the accumulation of impurities in the pipeline, reduces the number of filter cleaning or replacement times, ensures the normal operation of the metering pump, and improves production efficiency.
Smart Images
Figure CN222208266U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oilfield exploitation, in particular to a front-end pipeline of a filtering metering pump. Background Art
[0002] In petrochemical production sites, metering pumps are used to transport various types of chemicals. Metering pumps have the characteristics of low displacement and high head. Usually, the inlet and outlet diameters of metering pumps are within φ25mm.
[0003] At present, when the metering pump is working, since the conveyed medicine contains impurities such as mud, particles, etc., the impurities will stay on the ball seats of the suction valve and the discharge valve of the metering pump after entering the metering pump, causing the metering pump to be blocked. As a result, the metering pump cannot normally absorb and discharge liquid, which may cause equipment damage in severe cases. Therefore, a filter screen is set on the inlet pipeline of the metering pump used in the production site; however, the existing filtering device is prone to impurities accumulating in the pipeline, causing pipeline blockage or pipeline flow reduction, etc., and the filter screen needs to be frequently cleaned or replaced, which seriously affects production efficiency. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a front-end pipeline of a filtering metering pump. The utility model can effectively avoid the accumulation of impurities in the pipeline, ensure the normal circulation of the pipeline, reduce the number of cleaning or replacement times of the filter screen, and improve production efficiency.
[0005] The purpose of the utility model is achieved through the following technical solutions: a front-end pipeline of a filter-type metering pump, a first inlet pipeline flange, a second inlet pipeline flange and a filter flange sealing gasket, the filter flange sealing gasket includes a first sealing gasket, a second sealing gasket and a filter screen, the first sealing gasket is bonded to the second sealing gasket, and the filter screen is arranged between the first sealing gasket and the second sealing gasket, the filter screen includes a coarse filter screen and a fine filter screen, the coarse filter screen and the fine filter screen are both V-shaped, and the depth of the fine filter screen is greater than the depth of the coarse filter screen, the distance from the fine filter screen to the inlet end of the metering pump is less than the distance from the coarse filter screen to the inlet end of the metering pump, the first inlet pipeline flange is provided with a first connecting hole, the second inlet pipeline flange is provided with a second connecting hole, the first connecting hole and the second connecting hole are connected by bolts, and the filter flange sealing gasket is arranged between the first inlet pipeline flange and the second inlet pipeline flange.
[0006] In one preferred embodiment, the first sealing gasket and the second sealing gasket are bonded together by a sealant.
[0007] In one preferred embodiment, the top ends of the coarse filter and the fine filter are installed close to or far from the inlet end of the metering pump.
[0008] In one preferred solution, the first inlet pipe flange and the second inlet pipe flange are connected by pins.
[0009] The beneficial effects of the utility model are as follows: the utility model sets the filter screen as a coarse and fine filter screen, classifies and filters impurities, and can effectively filter out impurities in the medicine, which can not only ensure that the metering pump will not be blocked by impurities, but also ensure that the suction valve and discharge valve of the metering pump can be opened and closed normally. At the same time, the filter screen is designed to be V-shaped, which can effectively collect the filtered impurities, and has more filter holes, so that impurities will not accumulate in the pipeline and the flow rate will not be reduced, thereby reducing the number of times the filter screen is cleaned or replaced, and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0011] Figure 1 It is a schematic diagram of the structure of the utility model.
[0012] In the figure, 1-first inlet pipeline flange, 2-second inlet pipeline flange, 3-filter flange sealing gasket, 31-first sealing gasket, 32-second sealing gasket, 33-filter screen, 331-coarse filter screen, 332-fine filter screen. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.
[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. 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.
[0015] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0016] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.
[0017] The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.
[0018] The terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.
[0019] The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0020] In addition, the terms "roughly" and "basically" are intended to explain that the relevant content does not require absolute precision, but can have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "basically" have similar meanings to the above.
[0021] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 direct connection, or an indirect connection 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.
[0022] See also Figure 1 The utility model provides a technical solution: a front-end pipeline of a filter-type metering pump, a first inlet pipeline flange 1, a second inlet pipeline flange 2 and a filter flange sealing gasket 3, the filter flange sealing gasket 3 includes a first sealing gasket 31, a second sealing gasket 32 and a filter screen 33, the first sealing gasket 31 is bonded to the second sealing gasket 32, and the filter screen 33 is arranged between the first sealing gasket 31 and the second sealing gasket 32, the filter screen 33 includes a coarse filter screen 331 and a fine filter screen 332, the coarse filter screen 331 and the fine filter screen 332 are both V-shaped, and the depth of the fine filter screen 332 is greater than the depth of the coarse filter screen 331, the distance from the fine filter screen 332 to the inlet end of the metering pump is less than the distance from the coarse filter screen 331 to the inlet end of the metering pump, the first inlet pipeline flange 1 is provided with a first connecting hole, the second inlet pipeline flange 2 is provided with a second connecting hole, the first connecting hole and the second connecting hole are connected by bolts, and the filter flange sealing gasket 3 is arranged between the first inlet pipeline flange 1 and the second inlet pipeline flange 2. The utility model sets the filter screen as a coarse and fine filter screen 332, and classifies and filters impurities, which can effectively filter out impurities in the medicine, not only ensuring that the metering pump will not be blocked by impurities, but also ensuring that the suction valve and discharge valve of the metering pump can be opened and closed normally, and at the same time, the shape of the filter screen is designed to be V-shaped, which can effectively collect the filtered impurities, and there are more filter holes, so that impurities will not accumulate in the pipeline and the flow rate will not be reduced, and the number of cleaning or replacement of the filter screen 33 is reduced, thereby improving production efficiency.
[0023] Preferably, the first sealing gasket 31 and the second sealing gasket 32 are bonded by a sealant.
[0024] Preferably, the top ends of the coarse filter 331 and the fine filter 332 are installed close to the inlet end of the metering pump.
[0025] Preferably, the first inlet pipe flange and the second inlet pipe flange are connected by pins.
[0026] The above is only a preferred embodiment of the utility model. It should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.
Claims
1. Front-end pipeline of filter metering pump, Features: A first inlet pipeline flange, a second inlet pipeline flange and a filter flange gasket, the filter flange gasket includes a first gasket, a second gasket and a filter screen, the first gasket is bonded to the second gasket, and the filter screen is arranged between the first gasket and the second gasket, the filter screen includes a coarse filter screen and a fine filter screen, the coarse filter screen and the fine filter screen are both V-shaped, and the depth of the fine filter screen is greater than the depth of the coarse filter screen, the distance from the fine filter screen to the inlet end of the metering pump is less than the distance from the coarse filter screen to the inlet end of the metering pump, the first inlet pipeline flange is provided with a first connecting hole, the second inlet pipeline flange is provided with a second connecting hole, the first connecting hole and the second connecting hole are connected by bolts, and the filter flange gasket is arranged between the first inlet pipeline flange and the second inlet pipeline flange.
2. The front end pipeline of the filter metering pump according to claim 1, Features: The first sealing gasket and the second sealing gasket are bonded together by a sealant.
3. The front end pipeline of the filter metering pump according to claim 1, Features: The top ends of the coarse filter screen and the fine filter screen are installed close to the inlet end of the metering pump or away from the inlet end of the metering pump.
4. The front end pipeline of the filter metering pump according to claim 1, Features: The first inlet pipe flange and the second inlet pipe flange are connected by pins.