Dry-burning-resistant pump cover structure for water pump mechanical seal

Abstract

The utility model discloses an anti-dry burning pump cover structure for a water pump machine seal, which belongs to the technical field of water pump machine seals and comprises a main pump cover, a machine seal mounting groove is integrally formed on one side of the outer portion of the main pump cover, and a pump body mounting flange is integrally formed on the other side of the outer portion of the main pump cover. A cooling liquid pipe groove of a pipe cavity structure vertically penetrates through the pump body mounting flange, a machine seal body is detachably arranged in the machine seal mounting groove, and an auxiliary pump cover is fixed to the outer portion of the machine seal mounting groove through bolts. The double-pump-cover structure is designed, the independent cooling liquid circulating pipe is arranged on the main pump cover, the mechanical seal body is packaged in the mechanical seal installation groove in the pump cover and can be separated from circulating cooling liquid through the inclined supporting plate as an abutting contact, the auxiliary pump cover is installed outside the mechanical seal installation groove in a sealed mode, and therefore sealing installation of the mechanical seal body is achieved. The problem that in an existing water pump single-pump-cover structure, a mechanical seal and cooling liquid are communicated and are prone to damage is solved.

Description

Technical Field

[0001] This utility model relates to the field of water pump mechanical seal technology, and in particular to a pump cover structure for preventing dry burning of water pump mechanical seals. Background Technology

[0002] Mechanical seals for pumps are devices installed and operated in pump equipment that provide dynamic sealing, preventing fluid media in the pump casing from flowing out of the pump through the pump shaft.

[0003] When installing existing water pumps, the mechanical seal is enclosed in the coolant storage chamber and comes into direct contact with the coolant. Under the erosion caused by the high and low temperature cycles of the coolant, the mechanical seal is easily damaged, which in turn reduces the water pump's sealing performance.

[0004] To address the aforementioned issues, a pump cover structure for preventing dry burning of water pump mechanical seals is proposed. Utility Model Content

[0005] The main purpose of this utility model is to provide a pump cover structure for preventing dry burning of water pump mechanical seals, which solves the problems mentioned in the background art.

[0006] The objective of this utility model can be achieved by adopting the following technical solution:

[0007] A pump cover structure for preventing dry burning of a water pump mechanical seal includes a main pump cover. An integrally formed mechanical seal mounting groove is formed on one side of the main pump cover, and an integrally formed pump body mounting flange is formed on the other side of the main pump cover. A coolant pipe groove with a pipe structure is vertically passed through the pump body mounting flange. An organic seal body is detachably installed in the mechanical seal mounting groove, and an auxiliary pump cover is fixed to the outside of the mechanical seal mounting groove by bolts.

[0008] Furthermore, a liquid injection hole is provided at the top of the coolant pipe groove.

[0009] Furthermore, the cavity of the coolant pipe groove is connected to the interior of the mechanical seal mounting groove, and an inclined bracing plate is integrally welded to the inner wall of the mechanical seal mounting groove.

[0010] Furthermore, one side of the mechanical seal body abuts against the outer wall of the inclined support plate, and the other side abuts against the inner wall of the auxiliary pump cover.

[0011] Furthermore, the main pump cover, the mechanical seal body, and the auxiliary pump cover are all formed with pump shaft mounting holes of the same diameter at their center.

[0012] The beneficial technical effects of this utility model are as follows:

[0013] This utility model designs a double pump cover structure. The main pump cover is equipped with an independent coolant circulation pipe. The mechanical seal body is encapsulated in the mechanical seal mounting groove on the main pump cover and can be separated from the circulating coolant by the inclined brace plate. The auxiliary pump cover is sealed and installed outside the mechanical seal mounting groove, realizing the sealed installation of the mechanical seal body. This solves the problem that the mechanical seal and coolant are easily damaged when they are interconnected in the existing single pump cover structure of water pumps. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of a preferred embodiment of a pump cover structure for preventing dry burning of a water pump according to the present invention;

[0015] Figure 2 This is a rear view schematic diagram of a preferred embodiment of a pump cover structure for preventing dry burning of a water pump mechanical seal according to the present invention;

[0016] Figure 3 This is an exploded view of a preferred embodiment of a pump cover structure for preventing dry burning of a water pump mechanical seal according to the present invention.

[0017] The annotations in the attached figures are explained as follows:

[0018] 1. Main pump cover; 2. Coolant pipe groove; 3. Pump body mounting flange; 4. Pump shaft mounting hole; 5. Auxiliary pump cover; 6. Mechanical seal mounting groove; 7. Mechanical seal body; 8. Diagonal brace plate. Detailed Implementation

[0019] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0020] like Figures 1-3 As shown, this embodiment provides a pump cover structure for preventing dry burning of a water pump mechanical seal, including a main pump cover 1, an integrally formed mechanical seal mounting groove 6 on one side of the main pump cover 1, an integrally formed pump body mounting flange 3 on the other side of the main pump cover 1, a coolant pipe groove 2 with a pipe cavity structure vertically penetrating the pump body mounting flange 3, a mechanical seal body 7 detachably installed in the mechanical seal mounting groove 6, and an auxiliary pump cover 5 fixed to the outside of the mechanical seal mounting groove 6 by bolts.

[0021] In the above structure, the pump body mounting flange 3 is used for mounting and fixing the pump body.

[0022] The top of the coolant pipe trough 2 is provided with a liquid injection hole. Coolant is added to the coolant pipe trough 2 through the liquid injection hole, and heat is exchanged by wrapping the outer wall of the pump shaft. Cooling is achieved by contacting the air through the outer wall of the coolant pipe trough 2.

[0023] The coolant pipe groove 2 is connected to the inside of the mechanical seal mounting groove 6. An inclined brace 8 is integrally welded to the inner wall of the mechanical seal mounting groove 6. One end of the mechanical seal is a disc structure. After it comes into contact with and is squeezed by the inclined brace 8, it can seal the coolant in the cavity of the mechanical seal mounting groove 6 to prevent leakage to the outside. Therefore, the coolant and the mechanical seal can be installed independently. The mechanical seal is also installed by the squeezing of the auxiliary pump cover 5 to achieve effective sealing of the pump shaft and prevent coolant leakage.

[0024] One side of the mechanical seal body 7 abuts against the outer wall of the inclined support plate 8, and the other side abuts against the inner wall of the auxiliary pump cover 5.

[0025] The main pump cover 1, the mechanical seal body 7, and the auxiliary pump cover 5 are all formed with pump shaft mounting holes 4 of the same diameter through the center.

[0026] The working principle of this device is as follows:

[0027] When in use, the main shaft of the water pump passes through the pump shaft mounting holes 4 of the main pump cover 1 and the auxiliary pump cover 5, and also passes through the mechanical seal body 7. The mechanical seal body 7 is installed in the mechanical seal mounting groove 6 and is sealed by the auxiliary pump cover 5. It is pressed against the inclined support plate 8 and is in a compressed state, maintaining the seal between the pump shaft and the outside. At the same time, one end of the mechanical seal isolates the coolant in the mechanical seal mounting groove 6 and the coolant pipe groove 2, so that it can only cool the pump shaft and cannot contact the spring core of the mechanical seal, thus achieving the purpose of protecting the mechanical seal.

[0028] The above structure greatly improves the safety of the mechanical seal and ensures the sealing performance of the water pump.

[0029] The above are merely further embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope disclosed by this utility model, based on the technical solution and concept of this utility model, shall fall within the protection scope of this utility model.

[0030] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail in this application.

Claims

1. A pump cover structure for preventing dry burning of a water pump mechanical seal, comprising a main pump cover (1), characterized in that: The main pump cover (1) has an integrally formed mechanical seal mounting groove (6) on one side of its exterior, and a pump body mounting flange (3) is integrally formed on the other side of its exterior. A coolant pipe groove (2) with a pipe structure is vertically inserted through the pump body mounting flange (3). A mechanical seal body (7) is detachably installed inside the mechanical seal mounting groove (6). An auxiliary pump cover (5) is fixed to the outside of the mechanical seal mounting groove (6) by bolts.

2. The anti-dry-burning pump cover structure for a water pump mechanical seal according to claim 1, characterized in that: The top of the coolant pipe groove (2) is provided with a liquid injection hole.

3. The anti-dry-burning pump cover structure for a water pump mechanical seal according to claim 2, characterized in that: The cavity of the coolant pipe groove (2) is connected to the interior of the mechanical seal mounting groove (6), and an inclined bracing plate (8) is integrally welded on the inner wall of the mechanical seal mounting groove (6).

4. The anti-dry-burning pump cover structure for a water pump mechanical seal according to claim 3, characterized in that: One side of the mechanical seal body (7) abuts against the outer wall of the inclined support plate (8), and the other side abuts against the inner wall of the auxiliary pump cover (5).

5. The anti-dry-burning pump cover structure for a water pump mechanical seal according to claim 4, characterized in that: The main pump cover (1), the mechanical seal body (7), and the auxiliary pump cover (5) are all formed with pump shaft mounting holes (4) of the same diameter through the center.

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