Oil leakage-proof pressure cover of centrifugal pump

Abstract

The utility model discloses a centrifugal pump anti-leakage oil pressure cover which comprises a first shell, threads are arranged on the inner wall of the first shell, a second shell is movably connected to the outer side of the threads, a rubber strip rail is arranged in the second shell, a sealing rubber strip is movably connected to the inner wall of the rubber strip rail, and the sealing rubber strip is movably connected to the inner wall of the first shell. A cooling water pipe track is arranged on the outer wall of the first shell, a cooling water pipeline is movably connected to the outer side of the cooling water pipe track, and gland mounting holes are formed in the periphery of the top end of the first shell. Through the structure, the cooling water inlet, the cooling water outlet and the cooling water pipeline are arranged, so that thermal stress generated in the using process of the centrifugal pump is relieved, and the service life of the centrifugal pump gland is prolonged; the first rubber strip, the second rubber strip, the embedding groove, the embedding block and the annular groove are arranged, so that the first rubber strip and the second rubber strip are conveniently arranged on the second shell, and when the sealing rubber strip needs to be replaced, only the sealing rubber strip needs to be detached from the gland, and the sealing rubber strip is replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifugal pump oil leakage prevention, in particular to a centrifugal pump oil leakage prevention gland. Background Art

[0002] With the development of the times, the use of centrifugal pumps is increasing. Centrifugal pumps are a kind of mechanical equipment used to transport liquids. Their internal structure is complex, involving many rotating parts and connecting parts, such as impellers, bearings, seals, etc. Since centrifugal pumps need to withstand high pressure and speed during operation, as well as corrosion and wear from different liquids, the sealing performance of centrifugal pumps is very important.

[0003] In the prior art, centrifugal pumps are prone to heat up during operation. Equipment that works under high temperature for a long time is prone to component wear and reduced service life. At the same time, the centrifugal pump anti-leakage oil pressure cover is a specially designed component, which is mainly used to prevent liquid from leaking from key parts of the pump, such as bearings and seals. The seals here are generally sealed with sealing strips, but the sealing strips are not easy to remove and are prone to aging, making them time-consuming and labor-intensive to replace.

[0004] Therefore, we propose a leak-proof oil pressure cover for centrifugal pumps. Utility Model Content

[0005] The utility model provides a leakage-proof oil gland for a centrifugal pump, which adopts a sealing structure to ensure that the pump does not leak during operation. Moreover, by optimizing the material and structural design of the gland, its wear resistance and corrosion resistance are enhanced, the sealing effect and service life are improved, and the leakage problem that may occur during the operation of the pump is solved, thereby ensuring the operating efficiency and stability of the centrifugal pump, while reducing the waste of energy and materials and protecting the environment.

[0006] In order to achieve the above-mentioned purpose, a centrifugal pump anti-leakage oil pressure cover is provided, including a first shell, an inner wall of the first shell is provided with a thread, the outer side of the thread is movably connected to a second shell, an interior of the second shell is provided with a rubber track, the inner wall of the rubber track is movably connected to a sealing rubber strip, an outer wall of the first shell is provided with a cooling water pipe track, the outer side of the cooling water pipe track is movably connected to a cooling water pipe, and pressure cover mounting holes are provided around the top of the first shell. By setting up multiple gland mounting holes, it is convenient to place the gland at the corresponding position of the centrifugal pump and ensure that it is fully aligned with the interface of the pump. The gland is fixed to the centrifugal pump using the correct torque to ensure that the bolts are evenly tightened; by setting up a detachable connection between the cooling water pipe and the cooling water pipe track, it can be easily disassembled and is conducive to transportation; by using a built-in cooling water pipe, the working temperature of the gland is reduced, thermal stress is reduced, and the service life is extended; by setting up a detachable connection between the strip track and the sealing strip, it is convenient to replace the strip; by setting up an embedded block to be tightly connected with the inner side of the embedded groove, the height of the embedded block is completely consistent with the height of the embedded groove, which can ensure the sealing effect of the sealing strip itself, thereby facilitating the purpose of preventing oil leakage in the centrifugal pump; by setting up the second shell and the first strip, as well as the second shell and the second strip, to be tightly connected through the annular groove, the purpose is to achieve the sealing between the first strip, the second strip and the second shell.

[0007] According to the centrifugal pump oil leakage prevention gland, the gland mounting holes are multiple and symmetrically distributed on the first housing. By providing multiple gland mounting holes, it is convenient to place the gland on the corresponding position of the centrifugal pump and ensure that it is completely aligned with the interface of the pump, and use the correct torque to fix the gland to the centrifugal pump to ensure that the bolts are evenly tightened.

[0008] According to the centrifugal pump anti-leakage oil pressure cover, the cooling water pipeline is detachably connected to the cooling water pipeline track, and a cooling water inlet and outlet are provided inside the cooling water pipeline. By arranging the cooling water pipeline and the cooling water pipeline track to be detachably connected, the cooling water pipeline can be easily disassembled and is conducive to transportation.

[0009] According to the centrifugal pump anti-leakage oil gland, a cooling water inlet and outlet are provided inside the cooling water pipeline, the cooling water inlet and outlet include a cooling water outlet and a cooling water inlet, condensation pipes are provided inside the cooling water outlet and the cooling water inlet, and the cooling water outlet and the cooling water inlet are symmetrically distributed inside the cooling water inlet and outlet. The working temperature of the gland is lowered by the built-in cooling water pipeline, the thermal stress is reduced, and the service life is extended.

[0010] According to the centrifugal pump anti-leakage oil pressure cover, the inner wall of the rubber strip track is movably connected with a sealing rubber strip, and two annular grooves are provided inside the rubber strip track. The detachable connection between the rubber strip track and the sealing rubber strip is provided, which is conducive to convenient replacement of the rubber strip.

[0011] According to the centrifugal pump oil leakage prevention cover, the sealing rubber strip includes a first rubber strip and a second rubber strip, the first rubber strip has two embedded grooves inside, and the second rubber strip is fixedly connected with two embedded blocks, and the embedded blocks are tightly connected to the inner side of the embedded groove. By setting the embedded blocks to be tightly connected to the inner side of the embedded groove, the height of the embedded blocks is completely consistent with the height of the embedded groove, which can ensure the sealing effect of the sealing rubber strip itself, thereby facilitating the purpose of preventing oil leakage in the centrifugal pump.

[0012] According to the centrifugal pump anti-leakage oil pressure cover, the second housing and the first rubber strip, as well as the second housing and the second rubber strip, are tightly connected via an annular groove. The second housing and the first rubber strip, as well as the second housing and the second rubber strip, are tightly connected via an annular groove in order to achieve sealing between the first rubber strip, the second rubber strip and the second housing.

[0013] The beneficial effects of the utility model are as follows: by arranging a cooling water inlet, a cooling water outlet, and a cooling water pipeline, the thermal stress generated during the use of the centrifugal pump is relieved and the service life of the centrifugal pump gland is extended; by arranging a first rubber strip, a second rubber strip, an embedding groove, an embedding block, and an annular groove, it is convenient to arrange the first rubber strip and the second rubber strip on the second shell, and when it is necessary to replace the sealing strip, it is only necessary to remove the sealing strip from the gland and replace the sealing strip without removing the gland from the centrifugal pump.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0016] Figure 1 This is a three-dimensional structural diagram of the anti-leakage oil gland of the centrifugal pump of the utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the utility model centrifugal pump anti-leakage oil pressure cover disassembled;

[0018] Figure 3 It is a top view of the anti-leakage oil pressure cover of the centrifugal pump of the utility model;

[0019] Figure 4 It is a cross-sectional view of the sealing strip 3 of the oil pressure cover of the centrifugal pump according to the utility model.

[0020] Figure 5 It is a cross-sectional view of the cooling water inlet and outlet 5 of the leak-proof oil pressure cover of the centrifugal pump of the utility model.

[0021] Legend:

[0022] 1. First shell; 2. Second shell; 3. Sealing rubber strip; 4. Gland mounting hole; 5. Cooling water inlet and outlet; 6. Cooling water pipe; 7. Thread; 8. Rubber strip track; 9. Cooling water pipe track; 31. Embedding groove; 32. Embedding block; 34. Annular groove; 35. First rubber strip; 36. Second rubber strip; 51. Cooling water outlet; 52. Cooling water inlet. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] Reference Figures 1 to 5 The utility model embodiment of the centrifugal pump leakage-proof oil pressure cover comprises a first shell 1, the inner wall of the first shell 1 is provided with a thread 7, the outer side of the thread 7 is movably connected with a second shell 2, the interior of the second shell 2 is provided with a rubber track 8, the inner wall of the rubber track 8 is movably connected with a sealing rubber strip 3, the outer wall of the first shell 1 is provided with a cooling water pipe track 9, the outer side of the cooling water pipe track 9 is movably connected with a cooling water pipe 6, and the top of the first shell 1 is provided with pressure cover mounting holes 4 around it.

[0025] There are multiple gland mounting holes 4 , which are symmetrically distributed on the first housing 1 .

[0026] The cooling water pipeline 6 is detachably connected to the cooling water pipe track 9 , and a cooling water inlet and outlet 5 is provided inside the cooling water pipeline 6 .

[0027] A cooling water inlet and outlet 5 is provided inside the cooling water pipe 6, and the cooling water inlet and outlet 5 includes a cooling water outlet 51 and a cooling water inlet 52. Condensers are provided inside the cooling water outlet 51 and the cooling water inlet 52, and the cooling water outlet 51 and the cooling water inlet 52 are symmetrically distributed inside the cooling water inlet and outlet 5. The condenser is made of copper, which can better ensure the cooling effect of the cooling water pipe 6.

[0028] The inner wall of the rubber track 8 is movably connected with a sealing rubber strip 3, and two annular grooves 34 are provided inside the rubber track 8. The sealing rubber strip 3 is made of rubber.

[0029] The sealing strip 3 includes a first strip 35 and a second strip 36 . Two embedding grooves 31 are formed inside the first strip 35 . Two embedding blocks 32 are fixedly connected to the second strip 36 . The embedding blocks 32 are tightly connected to the inner sides of the embedding grooves 31 .

[0030] The second shell 2 and the first rubber strip 35 as well as the second shell 2 and the second rubber strip 36 are tightly connected via the annular groove 34 .

[0031] The main part of the condenser is composed of pipes or tube bundles, which are used to transfer the temperature of the cooling medium to the condensed gas and promote its cooling and condensation. These pipes are usually made of metal or plastic and have sufficient strength and thermal conductivity.

[0032] Working principle: After the first shell 1 is bolted to the second shell 2, when it is installed on the centrifugal pump, firstly, the first rubber strip 35 and the second rubber strip 36 are embedded in the rubber strip track 8 with two annular grooves 34, so that the first rubber strip 35 and the second rubber strip 36 are tightly connected to the second shell 2, and then the two embedding grooves 31 on the first rubber strip 35 are tightly connected with the two embedding blocks 32 on the second rubber strip 36 to enhance the sealing performance of the sealing rubber strip 3. When the rubber strip needs to be replaced, it is only necessary to remove the sealing rubber strip 3 from the second shell 2, and there is no need to remove the entire gland from the centrifugal pump; when the gland needs to be cooled as a whole, the cooling water pipe 6 is installed at the cooling water pipe track 9 on the first shell 1. Since the cooling water pipe 6 includes a cooling water outlet 51 and a cooling water inlet 52, condensers are provided inside the cooling water outlet 51 and the cooling water inlet 52, and the cooling water is input from the cooling water inlet 52, and then the cooling water is sent out from the cooling water outlet 51, thereby effectively achieving the purpose of cooling the gland.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A centrifugal pump anti-leakage oil pressure cover, comprising a first housing (1), characterized in that: The inner wall of the first shell (1) is provided with a thread (7), the inner surface of the thread (7) is threadedly connected to the second shell (2), the interior of the second shell (2) is provided with a rubber track (8), the inner wall of the rubber track (8) is movably connected to a sealing rubber strip (3), the outer wall of the first shell (1) is provided with a cooling water pipe track (9), the outer side of the cooling water pipe track (9) is movably connected to a cooling water pipe (6), and the top of the first shell (1) is provided with gland mounting holes (4) around it.

2. The anti-leakage oil pressure cover for a centrifugal pump according to claim 1, characterized in that: The gland mounting holes (4) are multiple in number and are symmetrically distributed on the first housing (1).

3. The anti-leakage oil pressure cover for a centrifugal pump according to claim 1, characterized in that: The cooling water pipeline (6) is detachably connected to the cooling water pipeline track (9), and a cooling water inlet and outlet (5) is provided inside the cooling water pipeline (6).

4. The anti-leakage oil pressure cover for a centrifugal pump according to claim 1, characterized in that: A cooling water inlet and outlet (5) is provided inside the cooling water pipeline (6), and the cooling water inlet and outlet (5) includes a cooling water outlet (51) and a cooling water inlet (52). Condensation pipes are provided inside the cooling water outlet (51) and the cooling water inlet (52), and the cooling water outlet (51) and the cooling water inlet (52) are symmetrically distributed inside the cooling water inlet and outlet (5).

5. The anti-leakage oil gland of a centrifugal pump according to claim 1, characterized in that: Two annular grooves (34) are formed inside the rubber track (8).

6. The anti-leakage oil pressure cover for a centrifugal pump according to claim 1, characterized in that: The sealing rubber strip (3) comprises a first rubber strip (35) and a second rubber strip (36); the first rubber strip (35) has two embedding grooves (31) formed therein; the second rubber strip (36) has two embedding blocks (32) fixedly connected thereto; the embedding blocks (32) are tightly connected to the inner sides of the embedding grooves (31).

7. The anti-leakage oil pressure cover for a centrifugal pump according to claim 1, characterized in that: The second shell (2) and the first rubber strip (35) as well as the second shell (2) and the second rubber strip (36) are tightly connected via the annular groove (34).

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