A sealed irrigation device

Abstract

The application discloses a sealed flushing device and belongs to the technical field of sealed flushing. The side surface of a sealing body is fixedly provided with a sealing liquid pipe. One end of the sealing body is fixedly connected with a liquid outlet pipe. One end of the liquid outlet pipe is provided with a liquid outlet cavity. The inner wall of the liquid outlet cavity is fixedly connected with a flow guide cover. The flow guide cover and the inner wall of the liquid outlet pipe enclose a collecting cavity. The sealed flushing device is provided with a horn-shaped flow guide cover, a dirt inlet and a backflow hole. Impurities and dirt intercepted by a filter screen can be directly introduced into the collecting cavity through water flow for collection. The sealed flushing device does not need to additionally increase a collecting assembly and power, has a simple structure, greatly reduces manufacturing cost, and is provided with a mounting sleeve and a flow guide pipe arranged on the liquid outlet pipe and a filter screen arranged at one end of the flow guide pipe. In the using process, the filter screen surface does not need to be cleaned through a cleaning assembly. Meanwhile, the flow guide cover can prevent backflow of dirt and impurities in the collecting cavity from causing blockage of filter screen meshes, so that the sealed flushing device has the function of preventing blockage.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sealed flushing, in particular to a sealed flushing device. BACKGROUND

[0002] Centrifugal pumps are an essential tool in the petrochemical industry, and centrifugal pumps need to be flushed after use.

[0003] At present, the existing sealed flushing device is provided with a filter plate assembly at one end of the liquid outlet pipe. During use, the cleaning water is filtered, and the impurities are intercepted on the surface of the filter plate, causing blockage. An additional cleaning assembly is required to clean and collect the impurities, without the function of automatic cleaning and collection, increasing the manufacturing cost.

[0004] For example, the petrochemical mechanical sealing flushing device disclosed in publication No. CN214837416U includes a mechanical sealing body, an inside of the mechanical sealing body is provided with a seal liquid cavity, a bottom of the seal liquid cavity is communicated with a liquid outlet, a right side of the inside of the liquid outlet is slotted with a sliding groove, the inside of the sliding groove is connected with the outside of a square groove assembly, the bottom of the liquid outlet is communicated with a filter pipe, a left side of the inside of the filter pipe is rotatably connected with a shaft rod through a bearing seat, a right side of the shaft rod is fixedly connected with a water wheel, and the right side of the water wheel is sleeved with the square groove assembly through a short connecting rod.

[0005] As known from the above-mentioned disclosure, one end of the filter pipe is provided with a filter plate for filtering the liquid outlet, so that the impurities are intercepted on the surface, causing blockage. An additional cleaning block assembly is required for cleaning, and then an additional collection box assembly is required for collecting the cleaned impurities. The sealed flushing device does not have the function of automatic cleaning and preventing mesh hole blockage, increasing the manufacturing cost of the device. SUMMARY

[0006] In view of the problems in the prior art, the purpose of the present application is to provide a sealed flushing device. The sealed flushing device is provided with a horn-shaped fairing, an inlet for dirt and a backflow hole. The impurities intercepted by the filter screen can be directly guided into the collection cavity by the water flow, without the need for additional collection assemblies and power. The structure is simple, greatly reducing the manufacturing cost. The installation sleeve and the flow guide pipe provided on the liquid outlet pipe, and the filter screen at one end of the flow guide pipe, do not need to clean the surface of the filter screen during use. At the same time, the flow guide cover can prevent the backflow of dirt and impurities in the collection cavity from causing blockage of the mesh holes of the filter screen, having the function of preventing blockage.

[0007] To solve the above-mentioned problems, the present application adopts the following technical solutions.

[0008] The utility model provides a sealed flush equipment, including the sealed body, the side surface of sealed body is fixedly installed with the sealed liquid pipe, one end of sealed body is fixedly connected with the liquid outlet pipe, one end of liquid outlet pipe is equipped with the liquid outlet cavity, the inner wall of liquid outlet cavity is fixedly connected with the flow guide cover, the flow guide cover and the inner wall of liquid outlet pipe are surrounded with the collection cavity, one end of collection cavity is detachably connected with the sealed plug, one end of sealed plug is equipped with the connecting part, the surface of connecting part is connected with the drain outlet through the thread, the side surface of liquid outlet pipe is fixedly connected with the symmetrical mounting sleeve, one side of mounting sleeve is fixedly installed with the flow guide pipe, one end of flow guide pipe is fixedly connected with the filter screen, the surface of filter screen is with the inner wall of liquid outlet cavity is in the same plane, this sealed flush equipment passes through the setting of the horn shape flow guide cover and the setting of the inlet of the flow guide cover and the backflow hole of flow guide cover, can directly through the water flow with the impurity dirt of filter screen interception is guided into the collection cavity and is collected, need not additional increase collection component and power, simple structure, greatly reduced manufacturing cost, and through the mounting sleeve and the flow guide pipe of liquid outlet pipe setting, and the filter screen at one end of flow guide pipe, need not through the cleaning component to clean the surface of filter screen in the use process, and the flow guide cover can prevent the backflow of dirty impurities in the collection cavity and cause the blockage of filter screen mesh, have the function of preventing blockage.

[0009] Further, the shape of the flow guide cover is horn-shaped, one end of the flow guide cover is provided with a flow guide groove, the bottom of the flow guide groove is provided with an inlet for dirty, and the inner wall of the flow guide groove is provided with a backflow hole.

[0010] Further, the backflow hole is annularly and equidistantly distributed with the center of the inlet for dirty as the center, the inner diameter of the backflow hole is smaller than the inner diameter of the inlet for dirty, and the backflow hole can avoid the entry of impurities into the liquid outlet cavity with the backflow of liquid.

[0011] Further, the shape of the connecting part is cylindrical, the surface of the connecting part is provided with external threads, and the inner wall of the drain outlet is provided with internal threads, so that the sealed plug has the function of disassembly and combination.

[0012] Further, the surface of the connecting part is sleeved with a sealing gasket made of extrusion-resistant sealing rubber.

[0013] Further, the shape of the sealed plug is polygonal.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] The utility model discloses a sealed flush equipment, including the sealed body, the side surface of sealed body is fixedly installed with the sealed liquid pipe, one end of sealed body is fixedly connected with the liquid outlet pipe, one end of liquid outlet pipe is equipped with the liquid outlet cavity, the inner wall of liquid outlet cavity is fixedly connected with the flow guide cover, the flow guide cover and the inner wall of liquid outlet pipe are surrounded with the collection cavity, one end of collection cavity is detachably connected with the sealed plug, one end of sealed plug is equipped with the connecting part, the surface of connecting part is connected with the drain outlet through the thread, the side surface of liquid outlet pipe is fixedly connected with the symmetrical mounting sleeve, one side of mounting sleeve is fixedly installed with the flow guide pipe, one end of flow guide pipe is fixedly connected with the filter screen, the surface of filter screen is with the inner wall of liquid outlet cavity is in the same plane, this sealed flush equipment passes through the setting of the horn shape flow guide cover and the setting of the inlet of the flow guide cover and the backflow hole of flow guide cover, can directly through the water flow with the impurity dirt of filter screen interception is guided into the collection cavity and is collected, need not additional increase collection component and power, simple structure, greatly reduced manufacturing cost, and through the mounting sleeve and the flow guide pipe of liquid outlet pipe setting, and the filter screen at one end of flow guide pipe, need not through the cleaning component to clean the surface of filter screen in the use process, and the flow guide cover can prevent the backflow of dirty impurities in the collection cavity and cause the blockage of filter screen mesh, have the function of preventing blockage.

[0016] The mounting sleeve and the flow guide pipe arranged on the liquid outlet pipe and the filter screen at one end of the flow guide pipe can clean the surface of the filter screen without cleaning the assembly during use, the flow guide cover can prevent the blockage of the filter screen mesh hole caused by the backflow of dirty impurities in the collection cavity, and has the function of preventing blockage. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 is a schematic diagram of the overall structure of the present application;

[0018] Fig. 2 is a top view of the flow guide cover structure of the present application;

[0019] Fig. 3 is a top view of the sealing plug structure of the present application.

[0020] Explanation of reference numerals in the drawings:

[0021] 1 sealing body, 2 liquid sealing pipe, 3 liquid outlet pipe, 31 liquid outlet cavity, 32 collection cavity, 33 sewage outlet, 34 filter screen, 35 mounting sleeve, 4 flow guide pipe, 5 flow guide cover, 51 flow guide groove, 52 backflow hole, 53 sewage inlet, 6 sealing plug, 61 connecting part, 62 sealing gasket. DETAILED DESCRIPTION

[0022] 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 other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment 1

[0023] Please refer to Figs. 1-3A sealed flushing device, comprising a sealing body 1, which is a mechanical sealing body, the structure and working principle of which are well known to those skilled in the art and belong to the prior art, and will not be described in detail here. The sealing body 1 is fixedly installed with a sealing liquid pipe 2 on the side surface. The sealing liquid pipe 2 is internally provided with a sealing liquid cavity, and the bottom of the sealing liquid cavity is provided with an opening in communication with a liquid outlet cavity 31. One end of the sealing body 1 is fixedly connected with a liquid outlet pipe 3. One end of the liquid outlet pipe 3 is provided with the liquid outlet cavity 31. The inner wall of the liquid outlet cavity 31 is fixedly connected with a flow guide cover 5. The flow guide cover 5 can neck the inlet of a collecting cavity 32 on one end, and has a flow guiding function. The flow guide cover 5 and the inner wall of the liquid outlet pipe 3 jointly enclose the collecting cavity 32. When water flows downward, the collecting cavity 32 is convenient for collecting impurities in the water flow. One end of the collecting cavity 32 is detachably connected with a sealing plug 6. One end of the sealing plug 6 is provided with a connecting portion 61. The surface of the connecting portion 61 is threadedly connected with a blow-off port 33. The blow-off port 33 is convenient for discharging the impurities collected in the collecting cavity 32. The side surface of the liquid outlet pipe 3 is fixedly connected with symmetrical mounting sleeves 35. One side of the mounting sleeve 35 is fixedly installed with a flow guide pipe 4. One end of the flow guide pipe 4 is fixedly connected with a filter screen 34. The surface of the filter screen 34 is in the same plane as the inner wall of the liquid outlet cavity 31.

[0024] The flow guide cover 5 is in the shape of a horn. One end of the flow guide cover 5 is provided with a flow guide groove 51. The bottom of the flow guide groove 51 is provided with an inlet 53. The inner wall of the flow guide groove 51 is provided with a backflow hole 52. The backflow hole 52 is convenient for the water in the collecting cavity 32 to flow upward into the liquid outlet cavity 31, so that the liquid in the collecting cavity 32 circulates, and the impurities are convenient for entering. The connecting portion 61 is in the shape of a cylinder. The surface of the connecting portion 61 is provided with external threads. The inner wall of the blow-off port 33 is provided with internal threads. The connecting portion 61 makes the sealing plug 6 have the functions of disassembly and combination.

[0025] In the embodiment, the horn-shaped flow guide cover 5, the inlet 53 and the backflow hole 52 provided on the flow guide cover 5 can directly guide the impurities and dirt intercepted by the filter screen 34 into the collecting cavity 32 through the water flow for collection, without the need to additionally increase a collection assembly and power. The structure is simple, and the manufacturing cost is greatly reduced. Example 2

[0026] Please refer to Figs. 1-3The utility model provides a sealed flushing equipment, including sealed body 1, sealed body 1 is mechanical seal body, and its constituent structure and working principle are familiar to the skilled person in the art, and it is prior art, and detailed description is not carried out here, the side surface of sealed body 1 is fixedly installed with seal liquid pipe 2, and seal liquid pipe 2 is equipped with seal liquid chamber, and the bottom of seal liquid chamber is equipped with the opening and is connected with liquid outlet chamber 31, and one end of sealed body 1 is fixedly connected with liquid outlet pipe 3, and one end of liquid outlet pipe 3 is equipped with liquid outlet chamber 31, and the inner wall of liquid outlet chamber 31 is fixedly connected with flow guide cover 5, and flow guide cover 5 can be narrowed to the inlet of one end of collection chamber 32, and simultaneously has the function of guiding flow, and flow guide cover 5 and the inner wall of liquid outlet pipe 3 are surrounded with collection chamber 32, and when water flow is impacted downward, it is convenient to collect the impurity in water flow, and one end of collection chamber 32 is detachably connected with sealed plug 6, and one end of sealed plug 6 is equipped with connecting portion 61, and the surface of connecting portion 61 is connected with blow-off 33 through screw thread, and blow-off 33 is convenient for the impurity collected in collection chamber 32 to be discharged, and the side surface of liquid outlet pipe 3 is fixedly connected with symmetrical mounting sleeve 35, and one side of mounting sleeve 35 is fixedly installed with flow guide pipe 4, and one end of flow guide pipe 4 is fixedly connected with filter screen 34, and the surface of filter screen 34 is in the same plane with the inner wall of liquid outlet chamber 31.

[0027] The return flow holes 52 are annularly and equidistantly distributed with the center of the pollution inlet 53 as the center, the inner diameter of the return flow holes 52 is smaller than the inner diameter of the pollution inlet 53, the return flow holes 52 can avoid the liquid flowing back from driving the sundries into the liquid outlet chamber 31, the surface of the connecting portion 61 is sleeved with the sealing gasket 62, the sealing gasket 62 is made of extrusion-resistant sealing rubber, and the shape of the sealed plug 6 is polygonal.

[0028] In the embodiment, the mounting sleeve 35 and the flow guide pipe 4 provided by the liquid outlet pipe 3 and the filter screen 34 at one end of the flow guide pipe 4 do not need to clean the surface of the filter screen 34 by cleaning the assembly during use, and the flow guide cover 5 can prevent the backflow of the dirty impurities in the collection chamber 32 from causing the blockage of the mesh holes of the filter screen 34, and has the function of preventing blockage.

[0029] The sealed flushing device, in use, liquid flows downward through the liquid outlet cavity 31, then enters the flow guide pipe 4 after being filtered by the filter screen 34, and the impurities intercepted in the liquid outlet cavity 31 are driven by the subsequent water flow to enter the flow guide groove 51 downward, and then enter the collection cavity 32 through the dirt inlet 53, and the liquid in the collection cavity 32 is discharged through the backflow hole 52 after being squeezed, thereby completing the automatic cleaning and collection of the filtered impurities. Through the trumpet-shaped flow guide cover 5, the dirt inlet 53 and the backflow hole 52 arranged on the flow guide cover 5, the impurities intercepted by the filter screen 34 can be directly guided into the collection cavity 32 for collection by water flow, without the need for additional collection components and power, and the structure is simple, greatly reducing the manufacturing cost. And through the mounting sleeve 35 arranged on the liquid outlet pipe 3 and the flow guide pipe 4, and the filter screen 34 at one end of the flow guide pipe 4, the surface of the filter screen 34 does not need to be cleaned by a cleaning component during use, and the flow guide cover 5 can prevent the backflow of dirt and impurities in the collection cavity 32 from causing the blockage of the mesh of the filter screen 34, having the function of preventing blockage.

[0030] The above is only the preferred specific embodiment of the present application; however, the protection scope of the present application is not limited thereto. Any person skilled in the art, within the technical range disclosed by the present application, according to the technical solution and improvement concept of the present application, makes equivalent replacement or changes, should be covered within the protection scope of the present application.

Claims

1. A sealed irrigation device comprising a sealing body (1), characterized in that: The side of the sealing body (1) is fixedly provided with a sealing liquid pipe (2), one end of the sealing body (1) is fixedly connected with a liquid outlet pipe (3), one end of the liquid outlet pipe (3) is provided with a liquid outlet cavity (31), the inner wall of the liquid outlet cavity (31) is fixedly connected with a flow guide cover (5), the flow guide cover (5) and the inner wall of the liquid outlet pipe (3) enclose a collecting cavity (32), one end of the collecting cavity (32) is detachably connected with a sealing plug (6), one end of the sealing plug (6) is provided with a connecting portion (61), the surface of the connecting portion (61) is threadedly connected with a blow-off port (33), the side of the liquid outlet pipe (3) is fixedly connected with symmetrical mounting sleeves (35), one side of the mounting sleeve (35) is fixedly provided with a flow guide pipe (4), one end of the flow guide pipe (4) is fixedly connected with a filter screen (34), the surface of the filter screen (34) is in the same plane with the inner wall of the liquid outlet cavity (31); The flow guide cover (5) is in the shape of a horn, one end of the flow guide cover (5) is provided with a flow guide groove (51), the bottom of the flow guide groove (51) is provided with a pollution inlet (53), the inner wall of the flow guide groove (51) is provided with a backflow hole (52), the surface of the connecting portion (61) is sleeved with a sealing gasket (62), the sealing gasket (62) is made of extrusion-resistant sealing rubber, the connecting portion (61) is in the shape of a cylinder, the surface of the connecting portion (61) is provided with external threads, and the inner wall of the blow-off port (33) is provided with internal threads.

2. A sealed irrigation device according to claim 1, characterized in that: The backflow holes (52) are annularly and equidistantly distributed with the center of the pollution inlet (53) as the center.

3. A sealed irrigation device according to claim 1, characterized in that: The inner diameter of the backflow hole (52) is smaller than the inner diameter of the pollution inlet (53).

4. A sealed irrigation device according to claim 1, characterized in that: The sealing plug (6) is in the shape of a polygon.

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