Mechanical seal cooling assembly of water pump

Abstract

The utility model discloses a mechanical seal cooling assembly of a water pump, which is arranged between the outlet end of a water pump main body (1) and a mechanical seal assembly (2) and comprises a first through pipe (3) arranged on the side part of the outlet end of the water pump main body (1) and a second through pipe (4) arranged on the outer side of the mechanical seal assembly (2) and communicated with the interior of the mechanical seal assembly (2), one end of the first through pipe (3) is connected with a first ball valve (5), one end of the second through pipe (4) is connected with a second ball valve (6), and a cooling pipe (7) is connected between the first ball valve (5) and the second ball valve (6). According to the utility model, the discharge inspection of the cooling medium can be conveniently carried out, the daily inspection is facilitated, and the dredging maintenance is also facilitated.

Description

Technical Field

[0001] The utility model relates to the field of mechanical seal components, in particular to a mechanical seal cooling component of a water pump. Background Art

[0002] In the water pump, a mechanical seal is used between the shaft and the pump body. Since the shaft rotates, heat is generated in the mechanical seal assembly. The heat accumulation will affect the use effect of the seal assembly. Therefore, the mechanical seal assembly needs to be cooled. The existing cooling method is to use an external pipeline at the mechanical seal assembly, one end of the pipeline is connected to a liquid storage tank, and the coolant in the liquid storage tank enters the cooling cavity through the liquid inlet pipe to cool the shaft. The cooled liquid is discharged from the liquid outlet pipe and circulated back to the liquid storage tank. However, this method requires additional coolant, which increases the cost. In order to save cost and cool the mechanical seal assembly, a pipeline is connected between the outlet end of the water pump and the mechanical seal assembly. However, the medium in the water pump is relatively complex, and the mechanical seal cooling liquid introduced from the water pump outlet is relatively viscous and contains impurities, which can easily cause the hose to be blocked, thereby causing the mechanical seal coolant to be interrupted and burning the mechanical seal. Only a single pipeline is not conducive to daily inspection, discovery and maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide a mechanical seal cooling assembly for a water pump, which can facilitate the discharge inspection of the cooling medium, is beneficial to daily inspection, and is also beneficial to dredging and maintenance.

[0004] The technical solution of the utility model: a mechanical seal cooling component of a water pump, the component is arranged between the outlet end of a water pump body and the mechanical seal component, and is characterized in that: it comprises a first through pipe arranged at the side of the outlet end of the water pump body, and a second through pipe arranged at the outside of the mechanical seal component and connected with the interior thereof; a first ball valve is connected to one end of the first through pipe, a second ball valve is connected to one end of the second through pipe, a cooling pipe is connected between the first ball valve and the second ball valve; a liquid outlet portion is provided on the cooling pipe, and a liquid outlet valve is provided at the liquid outlet portion; a support is provided on the base of the water pump body, and a clamping seat for supporting the cooling pipe is provided on the support.

[0005] In the above-mentioned mechanical seal cooling assembly of the water pump, the first ball valve includes a main valve body connected to the first through pipe, one end of the cooling pipe is provided with a secondary valve body connected to the main valve body, a ball body is rotatably provided in the main valve body, the upper end of the main valve body is provided with a rod body fixing part, the upper end of the ball body is provided with a connecting rod passing through the rod body fixing part, and the outer end of the connecting rod is provided with a valve handle.

[0006] In the aforementioned mechanical seal cooling assembly of the water pump, the support comprises a straight plate arranged on the water pump base, a transverse plate is arranged on the upper end of the straight plate, and the clamping seat is arranged on the transverse plate.

[0007] In the aforementioned mechanical seal cooling assembly of the water pump, a diagonal support plate is provided between the straight plate and the horizontal plate.

[0008] In the aforementioned mechanical seal cooling assembly of the water pump, the clamp seat includes a positioning seat arranged on the support, a first bolt member is arranged in the positioning cluster, a lower clamping seat is arranged in the positioning seat, and a sliding groove matching the first bolt member is arranged at the lower end of the lower clamping seat; an upper clamping seat is arranged on the lower clamping seat, and the cooling pipe is arranged between the upper clamping seat and the lower clamping seat.

[0009] In the aforementioned mechanical seal cooling assembly of the water pump, anti-slip rubber is provided on the inner side surfaces of the upper clamping seat and the lower clamping seat.

[0010] In the aforementioned mechanical seal cooling assembly of the water pump, a stud is provided at the lower end of the lower clamping seat, and a knob matching the stud is provided in the middle through groove of the positioning seat.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. In the utility model, under normal operating conditions, the liquid outlet valve is in a closed state, the first ball valve and the second ball valve are opened, and the liquid medium at the outlet end of the water pump body flows into the mechanical seal assembly through the cooling pipe to achieve cooling of the assembly. If the cooling pipe is found to be blocked during daily inspections, the second ball valve is closed, the liquid outlet valve is opened, and the liquid medium in the pipe is discharged without stopping the machine for inspection, thereby improving the convenience of daily inspections and facilitating the unblocking and maintenance of pipelines.

[0013] 2. The clamping seat is used to support the cooling pipe. The distance between the upper clamping seat and the lower clamping seat can be adjusted by bolts to tighten the cooling pipe and stably support the cooling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 is a schematic diagram of a cooling pipe;

[0016] Figure 3 is a schematic diagram of a first ball valve;

[0017] Figure 4 is a schematic diagram of a sphere;

[0018] Figure 5 is a schematic diagram of the clamping seat;

[0019] Figure 6 Schematic diagram of the stud.

[0020] Explanation of the marks in the accompanying drawings: 1. Water pump body; 2. Mechanical seal assembly; 3. First through pipe; 4. Second through pipe; 5. First ball valve; 6. Second ball valve; 7. Cooling pipe; 8. Liquid outlet; 9. Liquid outlet valve; 10. Support; 11. Clamp seat; 12. Straight plate; 13. Horizontal plate; 14. Diagonal support plate; 111. Positioning seat; 112. First bolt member; 113. Lower clamping seat; 114. Sliding groove; 115. Upper clamping seat; 116. Anti-slip rubber; 117. Stud; 118. Knob; 51. Main valve body; 52. Auxiliary valve body; 53. Ball; 54. Rod fixing member; 55. Connecting rod; 56. Valve handle. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but they are not intended to limit the present invention.

[0022] Embodiment: A mechanical seal cooling assembly for a water pump, the assembly is arranged between the outlet end of a water pump body 1 and a mechanical seal assembly 2, as shown in the attached Figure 1 and 2 As shown, the mechanical seal assembly is mainly used for sealing between the impeller shaft and the housing. The impeller shaft will rotate, and the rotation will generate heat. It includes a first through pipe 3 arranged at the side of the outlet end of the water pump body 1, and a second through pipe 4 arranged on the outside of the mechanical seal assembly 2 and connected to the inside thereof. One end of the first through pipe 3 is connected to a first ball valve 5, and one end of the second through pipe 4 is connected to a second ball valve 6. A cooling pipe 7 is connected between the first ball valve 5 and the second ball valve 6. When the impeller in the water pump rotates, the two ball valves are opened, and the water flow output by the water pump will pass into the first through pipe, and enter the mechanical seal assembly through the cooling pipe and the second through pipe; the cooling pipe 7 has a liquid outlet 8, and a liquid outlet valve 9 is installed at the liquid outlet 8. The liquid medium in the water pump is relatively complex, and the liquid may be relatively viscous and contain impurities, which may cause blockage to the pipe body. The liquid in the cooling pipe is discharged through the liquid outlet valve; a support 10 is installed on the base of the water pump body 1, and a clamping seat 11 for supporting the cooling pipe 7 is installed on the support 10, which is used to support the cooling pipe. The support 10 includes a straight plate 12 arranged on the base of the water pump body 1, a horizontal plate 13 is fixed to the upper end of the straight plate 12, the clamping seat 11 is arranged on the horizontal plate 13, and a diagonal support plate 14 is installed between the straight plate 12 and the horizontal plate 13 to improve the firmness of the seat body.

[0023] The first ball valve 5 comprises a main valve body 51 connected to the first through pipe 3, and an auxiliary valve body 52 connected to the main valve body 51 is installed at one end of the cooling pipe 7. Figure 3 and 4As shown, a ball 53 is rotatably provided inside the main valve body 51, and a rod fixing piece 54 is provided at the upper end of the main valve body 51. A connecting rod 55 passing through the rod fixing piece 54 is installed at the upper end of the ball 53, and a valve handle 56 is installed at the outer end of the connecting rod 55. The ball is rotated by rotating the valve handle to close the channel in the main valve body.

[0024] The clamping seat 11 includes a positioning seat 111 arranged on the support 10, as shown in the attached Figure 5 and 6 As shown, a plurality of mounting holes are provided at the bottom of the positioning seat, screws are arranged in the mounting holes, and the positioning seat is fixed to the support by the screws, a first bolt member 112 is installed in the positioning seat 111, a lower clamping seat 113 is installed in the positioning seat 111, and a sliding groove 114 is provided at the lower end of the lower clamping seat 113 to match the first bolt member 112; an upper clamping seat 115 is installed on the lower clamping seat 113, and the cooling pipe 7 is arranged between the upper clamping seat 115 and the lower clamping seat 113, and the upper clamping seat and the lower clamping seat are also connected by bolts, and the spacing between the upper clamping seat and the lower clamping seat is adjusted to adjust the clamping force of the cooling pipe. The inner side surfaces of the upper clamping seat 115 and the lower clamping seat 113 are provided with anti-slip rubber 116 to increase friction and stabilize the clamping of the cooling pipe; a stud 117 is installed at the lower end of the lower clamping seat 113, and a knob 118 matching the stud 117 is installed in the middle through groove of the positioning seat 111. The first bolts on both sides of the positioning seat are loosened and the knobs are turned, and the lower clamping seat is moved and adjusted on the positioning seat to adjust the height position of the cooling pipe.

[0025] The working principle of the utility model is as follows: under normal operating conditions, the liquid outlet valve is in a closed state, the first ball valve and the second ball valve are opened, and the liquid medium at the outlet end of the water pump body flows into the mechanical seal assembly through the cooling pipe to achieve cooling of the assembly. If the cooling pipe is found to be blocked during daily inspections, the second ball valve is closed, the liquid outlet valve is opened, and the liquid medium in the pipe is discharged without stopping the machine for inspection, thereby improving the convenience of daily inspections and facilitating the unblocking and maintenance of pipelines.

Claims

1. A mechanical seal cooling assembly for a water pump, the assembly being arranged between an outlet end of a water pump body (1) and a mechanical seal assembly (2), Features: The invention comprises a first through pipe (3) arranged at the side of the outlet end of the water pump body (1), and a second through pipe (4) arranged on the outside of the mechanical seal assembly (2) and connected to the inside thereof; one end of the first through pipe (3) is connected to a first ball valve (5), one end of the second through pipe (4) is connected to a second ball valve (6), and a cooling pipe (7) is connected between the first ball valve (5) and the second ball valve (6); the cooling pipe (7) is provided with a liquid outlet portion (8), and the liquid outlet portion (8) is provided with a liquid outlet valve (9); a support (10) is provided on the base of the water pump body (1), and a clamping seat (11) for supporting the cooling pipe (7) is provided on the support (10).

2. The mechanical seal cooling assembly of the water pump according to claim 1, Features: The first ball valve (5) comprises a main valve body (51) connected to the first through pipe (3); a secondary valve body (52) connected to the main valve body (51) is provided at one end of the cooling pipe (7); a ball (53) is rotatably provided in the main valve body (51); a rod fixing piece (54) is provided at the upper end of the main valve body (51); a connecting rod (55) passing through the rod fixing piece (54) is provided at the upper end of the ball (53); and a valve handle (56) is provided at the outer end of the connecting rod (55).

3. The mechanical seal cooling assembly of the water pump according to claim 1, Features: The support (10) comprises a straight plate (12) arranged on the base of the water pump body (1), a transverse plate (13) is arranged on the upper end of the straight plate (12), and the clamping seat (11) is arranged on the transverse plate (13).

4. The mechanical seal cooling assembly of the water pump according to claim 3, Features: A diagonal support plate (14) is provided between the straight plate (12) and the horizontal plate (13).

5. The mechanical seal cooling assembly of the water pump according to claim 1, Features: The clamping seat (11) comprises a positioning seat (111) arranged on the support (10), a first bolt member (112) is arranged in the positioning seat (111), a lower clamping seat (113) is arranged in the positioning seat (111), and a sliding groove (114) matching with the first bolt member (112) is arranged at the lower end of the lower clamping seat (113); an upper clamping seat (115) is arranged on the lower clamping seat (113), and the cooling pipe (7) is arranged between the upper clamping seat (115) and the lower clamping seat (113).

6. The mechanical seal cooling assembly of the water pump according to claim 5, Features: Anti-slip rubber (116) is provided on the inner side surfaces of the upper clamping seat (115) and the lower clamping seat (113).

7. The mechanical seal cooling assembly of the water pump according to claim 5, Features: A stud (117) is provided at the lower end of the lower clamping seat (113), and a knob (118) matching with the stud (117) is provided in the middle through slot of the positioning seat (111).

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