Centrifugal pump mechanical seal self-lubricating cooling device

Abstract

The utility model provides a mechanical seal self-lubricating cooling device of a centrifugal pump. The mechanical seal self-lubricating cooling device comprises a stainless steel oil cup; the two stainless steel ball valves are arranged on the two sides of the stainless steel oil cup respectively. The utility model provides a centrifugal pump mechanical seal self-lubricating cooling device which is characterized in that a stainless steel oil cup, a stainless steel ball valve, a stainless steel spiral coil, a quick connector, a mechanical seal cooling liquid inlet, a centrifugal pump and a mechanical seal cooling liquid outlet are matched with one another, and a pipeline can be conveniently connected and dismounted through the quick connector; when the centrifugal pump normally operates, the mechanical seal can drive lubricating oil to form self-circulation in the oil cup, the spiral coil, the mechanical seal cooling liquid inlet, the mechanical seal cooling liquid outlet, the spiral coil and the oil cup oil return opening through the thrust of autorotation of the centrifugal pump, so that the centrifugal pump can well cool and lubricate the mechanical seal under the condition that no cooling water exists. And the equipment can be normally used under the condition of no cooling water.

Description

Technical Field

[0001] The utility model relates to the field of centrifugal pumps, in particular to a centrifugal pump mechanical seal self-lubricating cooling device. Background Art

[0002] A centrifugal pump works by using the rotation of the impeller to cause water to move centrifugally. Before starting the pump, the pump casing and the suction pipe must be filled with water, and then the motor is started so that the pump shaft drives the impeller and water to rotate at high speed. The water moves centrifugally and is thrown to the outer edge of the impeller and flows into the water pressure pipeline of the pump through the flow channel of the volute pump casing.

[0003] Mechanical seal centrifugal pumps that require cooling water are often limited in cooling water (inconvenient to connect cooling water) and do not have cooling water supply conditions, resulting in the centrifugal pump being unable to use normally due to lack of cooling water. It is also difficult to connect the cooling water because there are no cooling water inlet and return pipes in the surrounding area. The centrifugal pump cannot cool and lubricate the mechanical seal well without cooling water, and the equipment cannot be used normally without cooling water.

[0004] Therefore, it is necessary to provide a centrifugal pump mechanical seal self-lubricating cooling device to solve the above technical problems. Summary of the invention

[0005] The utility model provides a centrifugal pump mechanical seal self-lubricating cooling device, which solves the problem that the centrifugal pump cannot cool and lubricate the mechanical seal well under the condition of no cooling water and cannot use the equipment normally under the condition of no cooling water.

[0006] In order to solve the above technical problems, the utility model provides a centrifugal pump mechanical seal self-lubricating cooling device, comprising: a stainless steel oil cup;

[0007] A stainless steel ball valve, wherein two stainless steel ball valves are respectively arranged on both sides of the stainless steel oil cup, a stainless steel spiral coil is arranged on one side of the stainless steel ball valve, and a quick connector is fixedly installed at the bottom end of the stainless steel spiral coil;

[0008] A centrifugal pump is arranged between the two quick connectors, a mechanical seal coolant inlet is arranged on one side of the centrifugal pump, and a mechanical seal coolant outlet is arranged on the other side of the centrifugal pump.

[0009] Preferably, a hanging cover is provided on the top of the outer surface of the stainless steel threaded coil, the bottom thread of the hanging cover is engaged with an exhaust seat, a fan is arranged inside the exhaust seat, the exhaust seat includes a mounting plate, a mounting tube, a threaded layer, a mounting cavity and an exhaust hole, and the hanging cover includes a mounting block, a threaded groove, a connecting block and a hanging plate.

[0010] Preferably, the mounting block is threadedly engaged with the top of the outer surface of the mounting tube, the thread groove is opened at the bottom of the mounting block, the connecting block is fixedly installed on one side of the outer surface of the mounting block, and the hanging plate is fixedly installed on one side of the outer surface of the connecting block.

[0011] Preferably, the mounting tube thread is engaged with the bottom of the thread groove, the mounting plate is fixedly mounted on the bottom of the mounting tube, the thread layer is opened on the outer surface of the mounting tube, the mounting cavity is opened inside the mounting tube, and the exhaust hole is opened on the outer surface of the mounting tube.

[0012] Preferably, four connecting blocks are provided, and the four connecting blocks are fixedly installed at equal intervals around the outer surface of the mounting block. Four hanging plates are also provided, and the four hanging plates are respectively fixedly installed at the bottom of the outer surfaces of the four connecting blocks.

[0013] Preferably, the length of the mounting pipe matches the length of the stainless steel spiral coil.

[0014] Preferably, the exhaust holes are connected to the installation cavity, and four of the exhaust holes form a group and are equidistantly arranged on the outer surface of the installation tube, and the four exhaust holes are equidistantly arranged in multiple groups from top to bottom.

[0015] Compared with the related art, the centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model has the following beneficial effects:

[0016] The utility model provides a centrifugal pump mechanical seal self-lubricating cooling device, which cooperates with each other through a stainless steel oil cup, a stainless steel ball valve, a stainless steel spiral coil, a quick connector, a mechanical seal coolant inlet, a centrifugal pump and a mechanical seal coolant outlet. The stainless steel oil cup is a self-lubricating coolant storage device; the stainless steel spiral coil is used to make the self-lubricating cooling oil better cooled by natural wind; the stainless steel ball valve is used to control the self-lubricating cooling oil passage switch. When the centrifugal pump is stopped, the ball valve is closed, and the ball valve is opened before normal operation. The quick connector can conveniently connect and remove the pipeline. When the centrifugal pump is operating normally, the mechanical seal will drive the lubricating oil through the oil cup, the spiral coil, the mechanical seal coolant inlet, the mechanical seal coolant outlet, the spiral coil and the oil return port of the oil cup to form a self-circulation through the thrust of the self-rotation of the centrifugal pump, so that the centrifugal pump can well cool and lubricate the mechanical seal under the condition that cooling water is not available, and the equipment can be used normally under the condition that cooling water is not available. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first embodiment of a centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model;

[0018] Figure 2A schematic structural diagram of a second embodiment of a centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model;

[0019] Figure 3 for Figure 2 The schematic diagram of the exhaust seat structure shown;

[0020] Figure 4 for Figure 2 The schematic diagram of the suspension cover structure shown;

[0021] Figure 5 for Figure 2 A schematic cross-sectional view of the exhaust seat is shown.

[0022] Numbers in the figure: 1. Stainless steel oil cup, 2. Stainless steel ball valve, 3. Stainless steel spiral coil, 4. Quick connector, 5. Mechanical seal coolant inlet, 6. Centrifugal pump, 7. Mechanical seal coolant outlet, 10. Exhaust seat, 101. Mounting plate, 102. Mounting pipe, 103. Threaded layer, 104. Mounting cavity, 105. Exhaust hole, 11. Hanging cover, 111. Mounting block, 112. Threaded groove, 113. Connecting block, 114. Hanging plate, 12. Fan. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0024] First embodiment

[0025] Please refer to Figure 1 ,in, Figure 1 The schematic diagram of the structure of the first embodiment of a centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model. A centrifugal pump mechanical seal self-lubricating cooling device comprises: a stainless steel oil cup 1;

[0026] A stainless steel ball valve 2, wherein two stainless steel ball valves 2 are respectively arranged on both sides of the stainless steel oil cup 1, a stainless steel spiral coil 3 is arranged on one side of the stainless steel ball valve 2, and a quick connector 4 is fixedly installed at the bottom end of the stainless steel spiral coil 3;

[0027] A centrifugal pump 6 is provided between the two quick connectors 4 , a mechanical seal coolant inlet 5 is provided on one side of the centrifugal pump 6 , and a mechanical seal coolant outlet 7 is provided on the other side of the centrifugal pump 6 .

[0028] The centrifugal pump 6 and the inlet and outlet surfaces are mechanically sealed.

[0029] The working principle of the centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model is as follows:

[0030] During operation, first, when the centrifugal pump 6 is stopped, the stainless steel ball valve 3 is closed. Before normal operation, the stainless steel ball valve 3 is opened. The quick connector 4 can conveniently connect and remove the pipeline. When the centrifugal pump 6 is operating normally, the mechanical seal will drive the lubricating oil through the thrust of the self-rotation of the centrifugal pump 6 to form a self-circulation in the stainless steel oil cup 1, the stainless steel spiral coil 3, the mechanical seal coolant inlet 5, the mechanical seal coolant outlet 7, the stainless steel spiral coil 3 and the return oil port of the stainless steel oil cup 1.

[0031] Compared with the related art, the centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model has the following beneficial effects:

[0032] The utility model provides a centrifugal pump mechanical seal self-lubricating cooling device, through the stainless steel oil cup 1, stainless steel ball valve 2, stainless steel spiral coil 3, quick connector 4, mechanical seal coolant inlet 5, centrifugal pump 6 and mechanical seal coolant outlet 7 cooperate with each other, the stainless steel oil cup 1 is a self-lubricating coolant storage device; the stainless steel spiral coil 3 is to make the self-lubricating cooling oil through the natural wind better cooling; the stainless steel ball valve 2 is convenient for controlling the self-lubricating cooling oil passage switch, when the centrifugal pump 6 is stopped, the ball valve is closed, and the ball valve is opened before normal operation, the quick connector 4 can be conveniently connected to the removal pipeline, the centrifugal pump 6 in normal operation of the mechanical seal will be driven by the thrust of the self-rotation of the centrifugal pump 6 to form a self-circulation in the oil cup, the spiral coil, the mechanical seal coolant inlet 5, the mechanical seal coolant outlet 7, the spiral coil and the oil return port of the oil cup, so that the centrifugal pump can well cool and lubricate the mechanical seal under the condition of no cooling water, and the equipment can be used normally under the condition of no cooling water.

[0033] Second embodiment

[0034] Please refer to Figure 2 , Figure 3 , Figure 4 and Figure 5 Based on the centrifugal pump mechanical seal self-lubricating cooling device provided in the first embodiment of the present application, the second embodiment of the present application proposes another centrifugal pump mechanical seal self-lubricating cooling device. The second embodiment is only a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0035] Specifically, the difference of the self-lubricating cooling device of the mechanical seal of a centrifugal pump provided in the second embodiment of the present application is that, in a self-lubricating cooling device of the mechanical seal of a centrifugal pump, a hanging cover 11 is provided on the top of the outer surface of the stainless steel threaded coil 3, and an exhaust seat 10 is engaged with the bottom thread of the hanging cover 11, and a fan 12 is arranged inside the exhaust seat 10, and the exhaust seat 10 includes a mounting plate 101, a mounting tube 102, a threaded layer 103, a mounting cavity 104 and an exhaust hole 105, and the hanging cover 11 includes a mounting block 111, a threaded groove 112, a connecting block 113 and a hanging plate 114.

[0036] The mounting block 111 is threadedly engaged with the top of the outer surface of the mounting tube 102 , the thread groove 112 is opened at the bottom of the mounting block 111 , the connecting block 113 is fixedly installed on one side of the outer surface of the mounting block 111 , and the hanging plate 114 is fixedly installed on one side of the outer surface of the connecting block 113 .

[0037] The mounting tube 102 is threadedly engaged with the bottom of the thread groove 112, the mounting plate 101 is fixedly installed on the bottom of the mounting tube 102, the thread layer 103 is opened on the outer surface of the mounting tube 102, the mounting cavity 104 is opened inside the mounting tube 102, and the exhaust hole 105 is opened on the outer surface of the mounting tube 102.

[0038] There are four connecting blocks 113 , which are equidistantly fixedly installed around the outer surface of the mounting block 111 . There are also four hanging plates 114 , which are respectively fixedly installed at the bottom of the outer surfaces of the four connecting blocks 113 .

[0039] The length of the installation pipe 102 is matched with the length of the stainless steel spiral coil 3 .

[0040] The exhaust holes 105 are connected to the installation cavity 104 , and four exhaust holes 105 form a group and are equidistantly arranged on the outer surface of the installation tube 102 , and the four exhaust holes 105 are equidistantly arranged in multiple groups from top to bottom.

[0041] The working principle of the centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model is as follows:

[0042] During operation, first, the mounting block 111 is installed on the top of the stainless steel spiral coil 5 through the connecting block 113 and the hanging plate 114, the mounting pipe 102 is passed into the interior of the stainless steel spiral coil 3, and the threaded layer 103 on the surface of the mounting pipe 102 is threadedly engaged with the thread groove 112 at the bottom of the mounting block 111.

[0043] The fan 12 is started by controlling an external power supply, and the air flow is blown onto the surface of the stainless steel spiral coil 3 from the exhaust hole 105 .

[0044] Compared with the related art, the centrifugal pump mechanical seal self-lubricating cooling device provided by the utility model has the following beneficial effects:

[0045] The utility model provides a centrifugal pump mechanical seal self-lubricating cooling device, an exhaust seat 10 is installed on the inner surface of a stainless steel threaded coil 3 through a hanging cover 11, an air flow from a fan 12 is blown from an exhaust hole 105 to the outer surface of the stainless steel spiral coil 3, thereby enhancing the cooling effect of the self-lubricating cooling oil inside the stainless steel spiral coil 3. The device has a simple structure and strong practicality, and can accurately discharge the air flow on the outer surface of the stainless steel spiral tube 3, thereby avoiding waste and improving the cooling effect.

[0046] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A centrifugal pump mechanical seal self-lubricating cooling device, characterized in that: include: Stainless steel oil cup; A stainless steel ball valve, wherein two stainless steel ball valves are respectively arranged on both sides of the stainless steel oil cup, a stainless steel spiral coil is arranged on one side of the stainless steel ball valve, and a quick connector is fixedly installed at the bottom end of the stainless steel spiral coil; A centrifugal pump is arranged between the two quick connectors, a mechanical seal coolant inlet is arranged on one side of the centrifugal pump, and a mechanical seal coolant outlet is arranged on the other side of the centrifugal pump.

2. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 1, characterized in that: A hanging cover is sleeved on the top of the outer surface of the stainless steel threaded coil, and an exhaust seat is threadedly engaged at the bottom of the hanging cover. A fan is arranged inside the exhaust seat. The exhaust seat includes a mounting plate, a mounting tube, a threaded layer, a mounting cavity and an exhaust hole, and the hanging cover includes a mounting block, a threaded groove, a connecting block and a hanging plate.

3. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 2, characterized in that: The mounting block is threadedly engaged with the top of the outer surface of the mounting tube, the thread groove is opened at the bottom of the mounting block, the connecting block is fixedly installed on one side of the outer surface of the mounting block, and the hanging plate is fixedly installed on one side of the outer surface of the connecting block.

4. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 2, characterized in that: The mounting tube thread is engaged with the bottom of the thread groove, the mounting plate is fixedly mounted on the bottom of the mounting tube, the thread layer is opened on the outer surface of the mounting tube, the mounting cavity is opened inside the mounting tube, and the exhaust hole is opened on the outer surface of the mounting tube.

5. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 2, characterized in that: There are four connecting blocks, which are equidistantly fixedly installed around the outer surface of the mounting block. There are also four hanging plates, which are respectively fixedly installed at the bottom of the outer surfaces of the four connecting blocks.

6. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 2, characterized in that: The length of the installation pipe is matched with the length of the stainless steel spiral coil.

7. A centrifugal pump mechanical seal self-lubricating cooling device according to claim 2, characterized in that: The exhaust holes are connected to the installation cavity, and four of the exhaust holes form a group and are equidistantly arranged on the outer surface of the installation tube, and the four exhaust holes are equidistantly arranged in multiple groups from top to bottom.

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