CN220738682U - Machine seal flushing device - Google Patents

Abstract

The utility model belongs to the technical field of mechanical sealing, and particularly relates to a mechanical sealing flushing device which comprises a filtering module, a heat exchange module, a flow detection module and a Plan32 module connected with the filtering module, wherein the filtering module, the heat exchange module and the flow detection module are sequentially connected; the liquid inlet end of the filter module is communicated with the outlet of the pump and comprises a filter pipeline and a bypass pipeline which are connected in parallel; the filter pipeline comprises a filter pipeline, and a first filter valve, a filter and a second filter valve which are sequentially arranged on the filter pipeline; the bypass pipeline comprises a bypass pipeline and a bypass valve arranged on the bypass pipeline; the Plan32 module is communicated with the liquid inlet ends of the filtering pipeline and the bypass pipeline; the liquid outlet end of the flow detection module is communicated to the mechanical seal cavity. The mechanical seal flushing device can select flushing schemes of the Plan11, the Plan21 and the Plan32 according to different flushing requirements, and is beneficial to improving the abrasion problem of mechanical seals and ensuring the flushing effect.

Description

Machine seal flushing device

Technical Field

The utility model belongs to the technical field of mechanical sealing, and particularly relates to a mechanical sealing flushing device.

Background

A mechanical seal is a shaft seal device of a rotary machine, which is widely used in various industrial apparatuses. Because of the differences in the application scenarios of mechanical seals, flushing of mechanical seals has various requirements, such as: 1. flushing to dissipate heat; 2. reducing the liquid temperature; 3. changing the pressure of the sealing cavity; 4. cleaning the process liquid; 5. the atmosphere side of the control seal, etc.

In some application scenarios, the flushing requirements cannot be met due to a single mechanical flushing scheme. Particularly in the heat supply project, because the medium in the pump cavity often contains impurities, when the flushing device only utilizes the medium to carry out self-flushing, unclean impurities or granular solid impurities can enter the mechanical seal cavity, so that the mechanical seal is easily worn seriously, and the service life of the mechanical seal is influenced.

Therefore, the flushing device needs to combine two or more flushing schemes for different flushing requirements, and the flushing schemes are reasonably selected, so that the condition of mechanical seal abrasion is improved and the flushing effect is ensured.

Disclosure of Invention

The utility model provides a mechanical seal flushing device which can meet flushing requirements of a Plan11, a Plan21 and a Plan32, so that the problems of serious abrasion and poor cleaning effect of mechanical seals caused by single flushing scheme are solved.

The embodiment of the utility model provides a mechanical seal flushing device which comprises a filtering module, a heat exchange module, a flow detection module and a Plan32 module connected with the filtering module, wherein the filtering module, the heat exchange module and the flow detection module are sequentially connected;

the liquid inlet end of the filter module is communicated with the outlet of the pump and comprises a filter pipeline and a bypass pipeline which are connected in parallel; the filter pipeline comprises a filter pipeline, and a first filter valve, a filter and a second filter valve which are sequentially arranged on the filter pipeline; the bypass pipeline comprises a bypass pipeline and a bypass valve arranged on the bypass pipeline;

the Plan32 module is communicated with the liquid inlet ends of the filtering pipeline and the bypass pipeline;

the liquid outlet end of the flow detection module is communicated to the mechanical seal cavity.

In some embodiments, the number of filter lines is two, with two filter lines being arranged in parallel.

In some embodiments, the liquid inlet ends of the two filtering pipelines and the bypass pipeline are both communicated to the outlet of the pump through a first connector, and the liquid outlet ends of the two filtering pipelines and the bypass pipeline are both communicated to the heat exchange module through a second connector; the Plan32 module connects the first connector.

In some embodiments, the bypass pipeline is arranged between two filter pipelines, and two ends of the bypass pipeline are correspondingly provided with a third joint and a fourth joint; wherein the feeding end of one filtering pipeline is connected with the first joint, and the discharging end of the filtering pipeline is connected with the fourth joint; the feeding end of the bypass pipeline is connected with the third joint, and the discharging end of the bypass pipeline is connected with the fourth joint; the feeding end of the other filtering pipeline is connected with the third joint, and the discharging end of the other filtering pipeline is connected with the second joint; the first joint is connected with the third joint and the fourth joint is connected with the second joint through a transition pipeline.

In some embodiments, the filter module further comprises a support assembly comprising a vertically disposed support frame, a first bracket for supporting the filter module, a second bracket for supporting the heat exchange module, and a third bracket for supporting the flow module, the first bracket, the second bracket, and the third bracket being located on different sides of the support frame in a circumferential direction, respectively.

In some embodiments, the first, second and third brackets are each vertically movably connected to the support frame.

In some embodiments, the support frame is in a square tube shape in vertical arrangement, and the first support, the second support and the third support are respectively located on side walls of different orientations of the support frame.

In some embodiments, the first bracket comprises a spool and a secondary bracket, the filter line and the bypass line are fixed on the spool, and the spool is connected with the support bracket through the secondary bracket.

In some embodiments, the second bracket comprises two L-shaped support plates, one side of each support plate is fixed on the support frame, and the other side of each support plate is connected with a cooling tank in the heat exchange module.

In some embodiments, the third bracket comprises a strip-shaped supporting arm and a supporting leg arranged on the supporting arm, the supporting arm is perpendicular to the supporting arm, and the flow detection element in the flow detection module is arranged on the supporting leg.

The mechanical seal flushing device can directly introduce a medium from a pump as flushing fluid, and the flushing schemes of the Plan11 and the Plan21 can be adjusted and selected by controlling the working state of the heat exchange module; an external rinse solution can also be introduced through the Plan32 module to select a rinse solution for the Plan 32. When the cleanliness of the external flushing liquid meets the flushing requirement, the external flushing liquid flows through the bypass pipeline; when the cleanliness of the external flushing liquid does not meet the flushing requirement, the external flushing liquid flows through the filtering pipeline. The mechanical seal device can select flushing schemes of the Plan11, the Plan21 and the Plan32 according to different flushing requirements, and is beneficial to improving the abrasion problem of the mechanical seal and ensuring the flushing effect.

Drawings

FIG. 1 is a schematic diagram of a mechanical seal flushing device of the present embodiment;

fig. 2 is a front view of the support assembly of the present embodiment supporting the modules;

fig. 3 is a right side view of the support assembly of the present embodiment supporting the various modules.

In the figure, a filtration module 10; a filter line 11; a filter tube 111; a first filter valve 112; a filter 113; a second filter valve 114; a bypass line 12; a bypass pipe 121; a bypass valve 122; a first joint 13; a second joint 14; a third joint 15; a fourth joint 16; a transition duct 17; a heat exchange module 20; a cooling tank 21; an exhaust port 22; a temperature detecting element 23; a flow detection module 30; a flow rate detection element 31; a Plan32 module 40; a support 50; a spool 51; a sub-bracket 52; a support plate 53; a support arm 54; legs 55; a pump 60; and a mechanical seal cavity 61.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It should be noted that the illustrations provided in the present embodiment are merely schematic illustrations of the basic idea of the present utility model.

The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and should not be construed as limiting the utility model to the extent that it can be practiced, since modifications, changes in the proportions, or otherwise, used in the practice of the utility model, are particularly adapted to the specific details of construction and the use of the utility model, without departing from the spirit or essential characteristics thereof, which fall within the scope of the utility model as defined by the appended claims.

References in this specification to orientations or positional relationships as "upper", "lower", "left", "right", "intermediate", "longitudinal", "transverse", "horizontal", "inner", "outer", "radial", "circumferential", etc., are based on the orientation or positional relationships shown in the drawings, are also for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1, the present embodiment provides a mechanical seal flushing device, which includes a filtering module 10, a heat exchange module 20, a flow detection module 30 and a Plan32 module 40. The feed end of filtration module 10 communicates to the export of pump 60, and the play liquid end of filtration module 10 communicates to the feed liquor end of heat transfer module 20, and the play liquid end of heat transfer module 20 communicates to the feed liquor end of flow detection module 30, and the play liquid end of flow detection module 30 communicates to mechanical seal chamber 61, and plane 32 module 40 communicates to the feed liquor end of filtration module 10.

Referring specifically to fig. 1 and 2, the filter module 10 of the present embodiment includes a filter line 11 and a bypass line 12, and the filter line 11 includes a filter pipe 111 and a first filter valve 112, a filter 113, and a second filter valve 114 sequentially provided on the filter pipe 111. The bypass line 12 includes a bypass line 121 and a bypass valve 122 provided in the bypass line 121, and the bypass line 12 is provided in parallel with the filter line 11. The heat exchange module 20 includes a conventional cooling tank 21, an exhaust port 22, and a temperature sensing element 23, and the flow sensing module 30 includes a conventional flow sensing element 31. The Plan32 module 40 is common knowledge, and is not described in detail in this embodiment.

The mechanical seal flushing device of the embodiment not only can directly introduce a medium from the outlet of the pump 60 as flushing fluid, the medium is filtered by the filter 113 on the filtering pipeline 11, and then the medium passes through the heat exchange module 20 and the flow detection module 30 and then flushes the mechanical seal cavity 61; an external rinse solution can also be introduced through the Plan32 module 40, with the external rinse solution being used to rinse the machine seal 61. When the cleanliness of the external flushing fluid meets the flushing requirement, the external flushing fluid sequentially flows through the heat exchange module 20 and the flow detection module 30 from the bypass pipeline 12 and then the sealing cavity 61 of the flushing machine is flushed; when the cleanliness of the external flushing fluid does not meet the flushing requirement, the external flushing fluid sequentially flows through the heat exchange module 20 and the flow detection module 30 from the filtering pipeline 11 and then flushes the machine seal cavity 61.

The seal flushing device of the embodiment can select the Plan11, the Plan21 and the Plan32 to flush the seal cavity 61 according to the requirement so as to meet different flushing requirements, thereby being beneficial to improving the abrasion problem of the mechanical seal and ensuring the flushing effect. When the Plan11 flushing machine seal cavity 61 is selected, the heat exchange module 20 stops working, and the medium does not exchange heat with the heat exchange module 20; when the Plan21 flushing machine seal cavity 61 is selected, the heat exchange module 20 works normally, and the medium needs to exchange heat with the heat exchange module 20 so that the medium reaches the temperature required by flushing; when the Plan32 is selected to flush the machine seal 61, the heat exchange module 20 stops working and the medium does not exchange heat with the heat exchange module 20. The flow detection module 30 of the embodiment acts on the two mechanical seal cavities 61 at the same time, so that the abnormality of the flow can be conveniently observed, and the fault can be removed in time.

It should be noted that, the valve in this embodiment may be a manual valve or an electromagnetic valve; the flow detection element 31 may be a conventional intelligent flow meter, and when the valve is a solenoid valve, the intelligent flow can detect and feed back flow data for automatically adjusting the flushing flow in cooperation with the solenoid valve. The orifice plate required for the seal flushing can be directly arranged on the pump 60 or can be arranged in the pipeline of the seal flushing device. Because the structure and the function of the orifice plate, the electromagnetic valve and the intelligent flowmeter are all prior art in the field, the embodiment is not repeated.

Specifically, the number of the filter pipelines 11 in this embodiment is two, the two filter pipelines 11 are arranged in parallel, one filter pipeline 11 is normally used, and the other filter pipeline 11 is standby, so that different channels can be switched to clean the filter 113 in time. The liquid inlet ends of the two filtering pipelines 11 and the bypass pipeline 12 are communicated to the outlet of the pump 60 through the first connector 13, and the liquid outlet ends of the two filtering pipelines 11 and the bypass pipeline 12 are communicated to the heat exchange module 20 through the second connector 14, so that the liquid inlet ends and the liquid outlet ends of the pipelines are connected, and the installation is convenient. The Plan32 module 40 of the present embodiment is preferably connected to the first connector 13 such that the external flushing fluid introduced by the Plan32 module 40 can selectively flow through the filter line 11 and the bypass line 12.

In the filter module 10 of the present embodiment, the bypass line 12 is preferably provided between the two filter lines 11, and the third joint 15 and the fourth joint 16 are provided at both ends of the bypass line 12, respectively. Specifically, the first joint 13 is a four-way joint, and the second to fourth joints 16 are three-way joints. The feeding end of one filtering pipeline 11 is connected with a first joint 13, and the discharging end of the filtering pipeline is connected with a fourth joint 16; the feeding end of the bypass pipeline 12 is connected with a third joint 15, and the discharging end of the bypass pipeline is connected with a fourth joint 16; the feeding end of the other filtering pipeline 11 is connected with a third joint 15, and the discharging end of the other filtering pipeline is connected with a second joint 14; a transition pipeline 17 is arranged between the first joint 13 and the third joint 15 and between the fourth joint 16 and the second joint 14.

Referring specifically to fig. 2 and 3, the mechanical seal flushing device of the present embodiment further includes a supporting component, where the supporting component includes a vertically arranged supporting frame 50, a first support for supporting the filtering module 10, a second support for supporting the heat exchange module 20, and a third support for supporting the flow module, and the first support, the second support, and the third support are located on different sides of the supporting frame 50 along a circumferential direction. The three brackets are arranged on different sides of the support frame 50, so that not only can the mutual interference of the modules be avoided, but also the occupied space can be reduced. The first support, the second support and the third support can be connected with the support frame 50 along the vertical movement, the heights of the three supports can be adjusted, and the connecting pipeline is convenient.

In this embodiment, the supporting frame 50 is preferably in a square tube shape that is vertically arranged, and four side walls of the supporting frame 50 face four different directions, and the side walls are flat, so that the supporting frame is convenient to be connected with each bracket. The first bracket preferably includes a spool 51 and a sub-bracket 52, and the filter line 11 and the bypass line 12 in the filter module 10 are fixed to the spool 51, and the spool 51 is connected to the support bracket 50 through the sub-bracket 52. The second bracket preferably includes two support plates 53 having an L-shape, one side of the support plates 53 being fixed to the support frame 50, and the other side of the support plates 53 being connected to the cooling tank 21 in the heat exchange module 20. The third bracket preferably comprises a supporting arm 54 in a strip shape and a supporting leg 55 arranged on the supporting arm 54, the supporting arm 54 is arranged perpendicular to the supporting frame 50, and the flow detection element 31 in the flow detection module 30 is arranged on the supporting leg 55.

It should be noted that, the first, second and third brackets have various moving structures relative to the supporting frame 50, for example, a conventional limiting element such as a bar hole, a chute, a guide rail, a screw rod, and a movable element adapted to the limiting element may be selected, which is not described in detail in this embodiment.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A machine seals washing unit, its characterized in that: the device comprises a filtering module (10), a heat exchange module (20), a flow detection module (30) and a Plan32 module (40) which are connected with the filtering module (10) in sequence;

the liquid inlet end of the filter module (10) is used for being communicated with the outlet of the pump (60), and comprises a filter pipeline (11) and a bypass pipeline (12) which are connected in parallel; the filter pipeline (11) comprises a filter pipeline (111) and a first filter valve (112) door, a filter (113) and a second filter valve (114) door which are sequentially arranged on the filter pipeline (111); the bypass pipeline (12) comprises a bypass pipeline (121) and a bypass valve (122) door arranged on the bypass pipeline (121);

the Plan32 module (40) is communicated with the liquid inlet ends of the filtering pipeline (11) and the bypass pipeline (12);

the liquid outlet end of the flow detection module (30) is communicated with the mechanical seal cavity (61).

2. The mechanical seal flushing device of claim 1, wherein: the number of the filtering pipelines (11) is two, and the two filtering pipelines (11) are arranged in parallel.

3. The mechanical seal flushing device of claim 2, wherein: the liquid inlet ends of the two filtering pipelines (11) and the bypass pipeline (12) are communicated to the outlet of the pump (60) through a first connector (13), and the liquid outlet ends of the two filtering pipelines (11) and the bypass pipeline (12) are communicated to the heat exchange module (20) through a second connector (14); the Plan32 module (40) is connected to the first connector (13).

4. A machine seal flushing device as defined in claim 3, wherein: the bypass pipeline (12) is arranged between the two filtering pipelines (11), and a third joint (15) and a fourth joint (16) are correspondingly arranged at two ends of the bypass pipeline (12);

wherein the feed end of one filtering pipeline (11) is connected with the first joint (13), and the discharge end of the filtering pipeline is connected with the fourth joint (16); the feeding end of the bypass pipeline (12) is connected with the third joint (15), and the discharging end of the bypass pipeline is connected with the fourth joint (16); the feeding end of the other filtering pipeline (11) is connected with the third joint (15), and the discharging end of the other filtering pipeline is connected with the second joint (14); the first joint (13) and the third joint (15) and the fourth joint (16) and the second joint (14) are connected through a transition pipeline (17).

5. The mechanical seal flushing device of any one of claims 1-4, wherein: still include supporting component, supporting component includes support frame (50) of vertical setting, is used for supporting first support of filtration module (10), be used for supporting the second support of heat exchange module (20) and be used for supporting the third support of flow detection module (30), first support the second support with the third support is located respectively along circumference the different sides of support frame (50).

6. The mechanical seal flushing device of claim 5, wherein: the first bracket, the second bracket and the third bracket are all connected with the supporting frame (50) in a vertically movable way.

7. The mechanical seal flushing device of claim 6, wherein: the support frame (50) is in a square tube shape in vertical arrangement, and the first support, the second support and the third support are respectively located on side walls of different orientations of the support frame (50).

8. The mechanical seal flushing device of claim 6, wherein: the first bracket comprises an I-shaped bracket (51) and an auxiliary bracket (52), the filtering pipeline (11) and the bypass pipeline (12) are fixed on the I-shaped bracket (51), and the I-shaped bracket (51) is connected with the supporting frame (50) through the auxiliary bracket (52).

9. The mechanical seal flushing device of claim 6, wherein: the second support comprises two L-shaped support plates (53), one side of each support plate (53) is fixed on the corresponding support frame (50), and the other side of each support plate (53) is connected with the cooling tank (21) in the corresponding heat exchange module (20).

10. The mechanical seal flushing device of claim 6, wherein: the third support comprises a strip-shaped supporting arm (54) and a supporting leg (55) arranged on the supporting arm (54), the supporting arm (54) is perpendicular to the supporting frame (50), and a flow detection element (31) in the flow detection module (30) is arranged on the supporting leg (55).