Thermal insulation structure of vertical coal slurry pump

Abstract

The utility model relates to the technical field of vertical coal slurry pumps, in particular to a heat preservation structure of a vertical coal slurry pump, which comprises a pump body and a pump seat, the pump body is mounted on the side wall of the pump seat, a first heat preservation shell is fixed on the side wall of the pump seat through bolts, and the first heat preservation shell and the pump seat form a first heat preservation cavity; and heat preservation liquid is introduced into the heat preservation cavity. When the pump body is in a low-temperature environment, the internal and external temperature difference of the pump body is reduced, so that the service life of the vertical coal slurry pump is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of vertical coal slurry pumps, and in particular to a thermal insulation structure of a vertical coal slurry pump. Background Art

[0002] A vertical coal slurry pump is a pump specially designed for conveying coal slurry containing solid particles. It is suitable for conveying water-coal containing certain impurities. Vertical coal slurry pumps are widely used in coal chemical industry, energy chemical industry and other fields. There is often a large temperature difference between coal slurry and ambient temperature. Under low ambient temperature difference, the installation of vertical coal slurry pumps often takes a lot of time and has low efficiency.

[0003] Existing vertical coal slurry pumps include a drive motor, a connector, a pump body, a pump base, and a mounting base. The connector is mounted on the side wall of the pump body, the drive motor is mounted on the end of the connector away from the pump body, the end of the pump body away from the connector is mounted on the side wall of the pump base, and the pump base is set on the side wall of the mounting base. When workers install the vertical coal slurry pump, they install the vertical coal slurry pump through the mounting base. The combined structure of the mounting base and the pump base facilitates the installation of the vertical coal slurry pump.

[0004] When the pump body is in a low-temperature environment, the pump body is more easily damaged due to the temperature difference between the inside and the outside, thereby reducing the service life of the vertical coal slurry pump. There is room for improvement. Utility Model Content

[0005] In order to reduce the temperature difference between the inside and outside of the pump body when the pump body is in a low-temperature environment, thereby increasing the service life of the vertical coal slurry pump, the present application provides a thermal insulation structure of a vertical coal slurry pump.

[0006] The present application provides a thermal insulation structure for a vertical coal slurry pump, which adopts the following technical solutions:

[0007] A thermal insulation structure for a vertical coal slurry pump includes a pump body and a pump seat. The pump body is installed on the side wall of the pump seat. A first thermal insulation shell is bolted to the side wall of the pump seat. The first thermal insulation shell and the pump seat form a first thermal insulation cavity. The interior of the thermal insulation cavity is filled with thermal insulation liquid.

[0008] By adopting the above technical solution, when installing the vertical coal slurry pump, the staff installs the pump body to the side wall of the pump seat, and then the staff installs the first insulation shell to the side wall of the pump seat, and then fills the interior of the first insulation shell with insulation liquid. At this time, the insulation liquid is located inside the first insulation cavity. Before the vertical coal slurry pump works, the staff preheats the pump body with the insulation liquid, and then the vertical coal slurry pump starts working. This setting reduces the temperature difference between the inside and outside of the pump body when the pump body is in a low temperature environment, thereby improving the service life of the vertical coal slurry pump.

[0009] Optionally, an injection hole is provided on the side wall of the first thermal insulation shell, and a sealing member is installed on the side wall of the first thermal insulation shell, and the side wall of the sealing member is threadedly fixed to the inner wall of the injection hole.

[0010] By adopting the above technical solution, before the vertical coal slurry pump works, the staff injects insulation liquid into the inside of the first insulation chamber through the injection hole. Under the action of the insulation liquid, the pump body is preheated. When the insulation liquid is injected, the staff uses a sealing piece to seal the injection hole. This setting makes it convenient for the staff to inject and discharge the insulation liquid in the first insulation shell, thereby improving the convenience of using the first insulation chamber.

[0011] Optionally, a feed pipe and a discharge pipe are fixed to the side walls of the pump body respectively, the feed pipe is located on the inner wall of the first insulation cavity, the side wall of the first insulation shell is installed with a second insulation shell, the side wall of the second insulation shell is fixed to the side wall of the discharge pipe by bolts, and the second insulation shell and the discharge pipe form a second insulation cavity.

[0012] By adopting the above technical solution, under the joint action of the first insulation chamber and the second insulation chamber, the insulation liquid conducts heat evenly on the side wall of the pump body, thereby improving the preheating efficiency of the insulation liquid on the pump body.

[0013] Optionally, the side walls of the first heat-insulating shell and the second heat-insulating shell are both provided with through holes, and the two through holes are arranged opposite to each other.

[0014] By adopting the above technical solution, the first insulation chamber is connected to the second insulation chamber. When the staff injects insulation liquid into the first insulation chamber, the insulation liquid enters the second insulation chamber at the same time. This setting improves the insulation performance of the vertical coal slurry pump.

[0015] Optionally, a soft film is fixed to the side wall of the first insulation shell, and the side wall of the soft film is fixed to the side wall of the pump seat.

[0016] By adopting the above technical solution, the inner wall of the gap between the first insulation shell and the pump seat abuts against the side wall of the soft membrane, thereby enhancing the sealing and adaptability of the insulation structure. While improving the insulation effect, the soft membrane can adapt to the slight deformation of the pump body, thereby improving the working stability of the vertical coal slurry pump.

[0017] Optionally, the inner walls of the first thermal insulation shell and the second thermal insulation shell are both fixed with thermal insulation films, and the side walls of the pump seat are also fixed with the thermal insulation film.

[0018] By adopting the above technical solution, the provision of the thermal insulation film improves the thermal insulation performance of the entire structure, effectively reduces the heat loss in the thermal insulation cavity, and enhances the thermal insulation effect.

[0019] Optionally, a plurality of heat sinks are fixed to the side wall of the feed pipe, and the heat sinks are close to the first insulation shell.

[0020] By adopting the above technical solution, this arrangement effectively improves the heat exchange efficiency between the feed pipe and the insulation liquid, and further enhances the insulation effect of the insulation liquid on the feed pipe.

[0021] Optionally, two injection holes are provided, and the side walls of the two injection holes are both threadedly fixed to the side walls of the blocking member.

[0022] By adopting the above technical solution, the vertical coal slurry pump can realize the circulation supply of insulation liquid through two injection holes, discharge the cooled insulation liquid through one injection hole, and re-inject the insulation liquid into the other injection hole. After the circulation supply is completed, the sealing part is sealed to the inner wall of the two injection holes, thereby improving the insulation effect of the insulation structure.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When installing a vertical coal slurry pump, the staff installs the pump body to the side wall of the pump seat, and then installs the first insulation shell to the side wall of the pump seat. At this time, the first insulation shell and the pump seat form a first insulation cavity. The staff passes the insulation liquid into the interior of the first insulation cavity. Before the vertical coal slurry pump works, the staff preheats the pump body by preheating the insulation liquid, and then the vertical coal slurry pump starts working. This setting reduces the temperature difference between the inside and outside of the pump body when the pump body is in a low temperature environment, thereby improving the service life of the vertical coal slurry pump.

[0025] 2. Before the vertical coal slurry pump works, the staff injects insulation liquid into the interior of the first insulation chamber through the injection hole, and then the insulation liquid flows into the interior of the second insulation chamber through the through hole. This setting simplifies the staff's operation of preheating the pump body and increases the preheating efficiency of the vertical coal slurry pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the insulation structure of a vertical coal slurry pump in Example 1 of the present application.

[0027] Figure 2 It is a cross-sectional view of the insulation structure of the vertical coal slurry pump in Example 1 of the present application.

[0028] Figure 3 It is a schematic diagram of the overall structure of the insulation structure of a vertical coal slurry pump in Example 2 of the present application.

[0029] Figure 4 It is a cross-sectional view of the insulation structure of the vertical coal slurry pump in Example 2 of the present application.

[0030] Figure numerals: 1. pump body; 2. pump seat; 3. first insulation shell; 4. first insulation chamber; 5. insulation liquid; 6. injection hole; 7. sealing member; 8. feed pipe; 9. discharge pipe; 10. second insulation shell; 11. second insulation chamber; 12. through hole; 13. soft membrane; 14. insulation film; 15. heat sink. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-4 This application is described in further detail.

[0032] An embodiment of the present application discloses a thermal insulation structure for a vertical coal slurry pump.

[0033] Example 1

[0034] Reference Figure 1 A vertical coal slurry pump insulation structure includes a pump body 1, a pump base 2, and a first insulation shell 3. The pump body 1 is mounted on the side wall of the pump base 2, and the first insulation shell 3 is bolted to the side wall of the pump base 2. The side wall of the first insulation shell 3 is provided with an injection hole 6, and a sealing member 7 is threadedly fixed to the side wall of the injection hole 6. Before the vertical coal slurry pump is put into operation, the operator preheats the pump body 1 through the injection hole 6 and then uses the sealing member 7 to block the injection hole 6. This arrangement facilitates the operator to preheat the pump body 1.

[0035] Reference Figure 2 The side wall of the first insulation shell 3 is bolted with a second insulation shell 10, the first insulation shell 3 and the pump seat 2 form a first insulation chamber 4, the second insulation shell 10 and the pump body 1 form a second insulation chamber 11, the first insulation chamber 4 and the second insulation chamber 11 are both filled with insulation liquid 5, and the side walls of the first insulation shell 3 and the second insulation shell 10 are both provided with through holes 12, and the two through holes 12 are arranged correspondingly. When the staff injects insulation liquid 5 into the first insulation chamber 4 through the injection hole 6, the insulation liquid 5 flows into the second insulation chamber 11 through the through hole 12. This arrangement further improves the insulation effect of the insulation liquid 5 and improves the preheating efficiency of the pump body 1.

[0036] Reference Figure 1 and Figure 2 A feed pipe 8 and a discharge pipe 9 are fixed on both sides of the pump body 1. The feed pipe 8 is located inside the first insulation chamber 4, and the discharge pipe 9 is located inside the second insulation chamber 11. The side wall of the second insulation shell 10 is fixed to the side wall of the discharge pipe 9 by bolts. When the staff preheats the pump body 1, the insulation liquid 5 flows through the side walls of the feed pipe 8 and the discharge pipe 9 at the same time, reducing the possibility of damage to the feed pipe 8 and the discharge pipe 9 due to temperature difference, and increasing the stability of the vertical coal slurry pump during operation.

[0037] In the first embodiment of the present application, the implementation principle of the insulation structure of a vertical coal slurry pump is as follows: before using the vertical coal slurry pump, the staff injects insulation liquid 5 into the interior of the first insulation cavity 4 through the injection hole 6, and the insulation liquid 5 flows into the interior of the second insulation cavity 11 through the through hole 12. After the insulation liquid 5 is injected, the staff uses the sealing member 7 to block the injection hole 6. At this time, under the joint action of the insulation liquid 5 inside the first insulation cavity 4 and the second insulation cavity 11, the pump body 1, the feed pipe 8 and the discharge pipe 9 are all preheated. This reduces the temperature difference between the inside and outside of the pump body 1 when the pump body 1 is in a low temperature environment, thereby improving the service life of the vertical coal slurry pump.

[0038] Example 2

[0039] The difference between the second embodiment and the first embodiment is that: Figure 3 A thermal insulation structure of a vertical coal slurry pump includes an injection hole 6 and a soft membrane 13. Two injection holes 6 are provided. The side walls of the soft membrane 13 are respectively fixed to the side walls of the pump base 2, the side walls of the first thermal insulation shell 3, and the side walls of the second thermal insulation shell 10. The inner wall of the gap between the first thermal insulation shell 3 and the pump base 2 abuts against the side wall of the soft membrane 13. The setting of the soft membrane 13 enhances the sealing of the vertical coal slurry pump, reduces heat loss, and improves the thermal insulation efficiency.

[0040] Reference Figure 4 The inner wall of the first insulation chamber 4 and the inner wall of the second insulation chamber 11 are both fixed with insulation films 14. The setting of the insulation film 14 further reduces the heat loss of the insulation liquid 5 and improves the insulation efficiency. The side wall of the feed pipe 8 is fixed with heat sinks 15. The setting of the heat sinks 15 increases the heat exchange efficiency between the coal slurry inside the feed pipe 8 and the insulation liquid 5, and reduces the time required for preheating the pump body 1.

[0041] In the second embodiment of the present application, the implementation principle of the insulation structure of a vertical coal slurry pump is as follows: when the vertical coal slurry pump is working, the coal slurry flows into the pump body 1 through the feed pipe 8. At this time, under the heat dissipation effect of the heat sink 15, the heat of the coal slurry is distributed to the inside of the insulation liquid 5 through the feed pipe 8. This arrangement reduces the time required for preheating the pump body 1 while improving the heat conduction efficiency of the pump body 1, further improving the service life of the vertical coal slurry pump.

[0042] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A thermal insulation structure for a vertical coal slurry pump, comprising a pump body (1) and a pump base (2), wherein the pump body (1) is mounted on a side wall of the pump base (2), and is characterized in that: A first heat-insulating shell (3) is fixed to the side wall of the pump seat (2) by bolts. The first heat-insulating shell (3) and the pump seat (2) form a first heat-insulating cavity (4). Heat-insulating liquid (5) flows into the heat-insulating cavity.

2. The thermal insulation structure of a vertical coal slurry pump according to claim 1, characterized in that: An injection hole (6) is provided on the side wall of the first thermal insulation shell (3), and a sealing member (7) is installed on the side wall of the first thermal insulation shell (3). The side wall of the sealing member (7) is threadedly fixed to the inner wall of the injection hole (6).

3. The thermal insulation structure of a vertical coal slurry pump according to claim 2, characterized in that: A feed pipe (8) and a discharge pipe (9) are fixed to the side walls of the pump body (1), respectively; the feed pipe (8) is located on the inner wall of the first heat-insulating cavity (4); a second heat-insulating shell (10) is installed on the side wall of the first heat-insulating shell (3); the side wall of the second heat-insulating shell (10) is fixed to the side wall of the discharge pipe (9) by bolts; the second heat-insulating shell (10) and the discharge pipe (9) form a second heat-insulating cavity (11).

4. The thermal insulation structure of a vertical coal slurry pump according to claim 3, characterized in that: The side walls of the first heat-insulating shell (3) and the second heat-insulating shell (10) are both provided with through holes (12), and the two through holes (12) are arranged opposite to each other.

5. The thermal insulation structure of a vertical coal slurry pump according to claim 3, characterized in that: A soft film (13) is fixed to the side wall of the first heat-insulating shell (3), and the side wall of the soft film (13) is fixed to the side wall of the pump seat (2).

6. The thermal insulation structure of a vertical coal slurry pump according to claim 5, characterized in that: The inner walls of the first thermal insulation shell (3) and the second thermal insulation shell (10) are both fixed with thermal insulation films (14), and the side walls of the pump seat (2) are also fixed with the thermal insulation films (14).

7. The thermal insulation structure of a vertical coal slurry pump according to claim 6, characterized in that: A plurality of heat sinks (15) are fixed to the side wall of the feed pipe (8), and the heat sinks (15) are close to the first heat-insulating shell (3).

8. The thermal insulation structure of a vertical coal slurry pump according to claim 7, characterized in that: Two injection holes (6) are provided, and the side walls of the two injection holes (6) are both threadedly fixed to the side walls of the blocking member (7).

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