Heat preservation structure of BB2 pump

Abstract

The utility model discloses a heat preservation structure of a BB2 pump, which comprises a pump body, a first heat preservation cover and a second heat preservation cover are respectively arranged above and below the pump body, a steam inlet joint is arranged on one side of the first heat preservation cover, a steam outlet joint is arranged on one side of the second heat preservation cover, and a steam outlet joint is arranged on the other side of the second heat preservation cover. The first heat preservation cover and the second heat preservation cover are both formed by welding steel plate structures, the steel plate of the first heat preservation cover starts from welding of the flange and extends downwards to the upper surfaces of the pump body supporting legs, and the second heat preservation cover starts from the pump body supporting legs and comprises the lower edge of the pump body. High-temperature steam is introduced into the heat preservation cover, heat preservation of the pump body is achieved, the medium conveying requirement is met, the heat preservation cover is simple in machining process, convenient to install and low in cost, and an original pump body structure does not need to be changed.

Description

Technical Field

[0001] The utility model relates to the technical field of pump body heat preservation, in particular to a heat preservation structure of a BB2 pump. Background Art

[0002] BB2 centrifugal pump is a centrifugal pump commonly used in petrochemical industry.

[0003] The existing BB2 structure pump cannot realize the pump insulation function, resulting in that the BB2 structure pump cannot be used when conveying media that require insulation. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a heat preservation structure for a BB2 pump, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a BB2 pump insulation structure, including a pump body, a first insulation cover and a second insulation cover are respectively provided above and below the pump body, a steam inlet joint is installed on one side of the first insulation cover, and a steam outlet joint is installed on one side of the second insulation cover.

[0006] Preferably, the first heat-insulating cover and the second heat-insulating cover are both formed by welding steel plate structures.

[0007] Preferably, the first insulation cover steel plate is welded starting from the flange and extending downward to the upper surface of the pump body support foot.

[0008] Preferably, the second heat-insulating cover starts from the pump body support foot and includes the lower edge of the pump body.

[0009] Beneficial Effects

[0010] The utility model provides a heat-insulating structure for a BB2 pump, which has the following beneficial effects: a steam heat-insulating cover is welded outside the original pump body, and high-temperature steam is passed through the heat-insulating cover to achieve heat insulation of the pump body and meet the requirements of the conveying medium. The heat-insulating cover has a simple processing process, is easy to install, and has a low cost, and there is no need to change the original pump body structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic structural diagram of a heat preservation structure of a BB2 pump described in the utility model.

[0012] Figure 2 This is a front view of the insulation structure of a BB2 pump described in the utility model.

[0013] Figure 3 This is a top view of the insulation structure of a BB2 pump described in the utility model.

[0014] In the figure: 1. first thermal insulation cover; 2. steam outlet joint; 3. steam inlet joint; 4. pump body; 5. second thermal insulation cover. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-3 The utility model provides a technical solution for the insulation structure of a BB2 pump: an insulation structure of a BB2 pump, including a pump body 4, a first insulation cover 1 and a second insulation cover 5 are respectively provided above and below the pump body 4, a steam inlet joint 3 is installed on one side of the first insulation cover 1, and a steam outlet joint 2 is installed on one side of the second insulation cover 5.

[0017] Furthermore, the first heat-insulating cover 1 and the second heat-insulating cover 5 are both formed by welding steel plate structures.

[0018] Furthermore, the first heat-insulating cover 1 steel plate is welded starting from the flange and extending downward to the upper surface of the four legs of the pump body.

[0019] Furthermore, the second heat-insulating cover 5 starts from the support foot of the pump body 4 and includes the lower edge of the pump body 4 .

[0020] Embodiment: A heat preservation cover is welded on the processed pump body. The heat preservation cover is welded by steel plates. The heat preservation cover is divided into two parts: a first heat preservation cover 1 and a second heat preservation cover 5. The steel plate of the first heat preservation cover 1 starts from the flange and extends downward to the upper surface of the support leg of the pump body 4. The second heat preservation cover 5 starts from the support leg and includes the lower edge of the pump body 4. The heat preservation cover completely contains the pump body 4. There is no leakage in the welding of the joint. Only the inlet and outlet flanges of the pump body 4 need to be reserved to connect with the user's on-site pipeline.

[0021] When the pump body 4 needs to be opened for external connection, such as the pump body 4 drainage hole, balanced return hole, etc., it is only necessary to open a hole at the insulation cover corresponding to the opening position of the pump body 4, and extend the external pipe to the outside of the insulation cover, and weld the insulation cover opening to the pipe to prevent leakage. Finally, the steam outlet joint 2 and the steam inlet joint 3 are welded on the insulation cover. The joints use Rc1 / 2 thread buckles for easy installation and disassembly. Other connection methods can also be used to pass into the insulation cover. The steam inlet joint 3 is on the upper side of the insulation cover, and the steam outlet joint 2 is on the bottom side of the insulation.

[0022] The joint is used to connect the on-site steam to insulate the pump body. After the insulation cover is welded, a pressure test is required to ensure that there is no leakage and penetration. After the pump is finally assembled, just connect the steam inlet and outlet on the insulation cover to the steam main pipeline on the base.

[0023] After the pump is transported to the user's site, it is only necessary to pass the on-site steam to the steam main pipeline, and the steam can circulate in the insulation cover to maintain the temperature of the pump body and meet the requirements of the conveying medium.

[0024] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A BB2 pump insulation structure, comprising a pump body (4), characterized in that: A first heat-insulating cover (1) and a second heat-insulating cover (5) are respectively provided above and below the pump body (4); a steam inlet joint (3) is installed on one side of the first heat-insulating cover (1), and a steam outlet joint (2) is installed on one side of the second heat-insulating cover (5).

2. A BB2 pump insulation structure according to claim 1, characterized in that: The first heat-insulating cover (1) and the second heat-insulating cover (5) are both formed by welding steel plate structures.

3. A BB2 pump insulation structure according to claim 1, characterized in that: The steel plate of the first heat-insulating cover (1) is welded starting from the flange and extending downward to the upper surface of the support foot of the pump body (4).

4. A BB2 pump insulation structure according to claim 1, characterized in that: The second heat-insulating cover (5) starts from the support foot of the pump body (4) and includes the lower edge of the pump body (4).

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