Heater for hot charging centrifugal pump impeller
By introducing high-frequency heating technology and filling materials, the problems of labor waste and environmental pollution in the traditional oxygen-acetylene baking process have been solved, and efficient and environmentally friendly heat-fitting of centrifugal pump impellers has been achieved.
Patent Information
- Application Number
- CN202423315707.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2034-12-31
AI Technical Summary
Traditional oxygen-acetylene baking processes for hot-loading centrifugal pump impellers result in wasted labor, harm to human health, and environmental pollution.
Employing high-frequency heating technology, the heater body, connected to the coil via a high-frequency control cabinet, utilizes electromagnetic induction to generate eddy currents for heating. Combined with concrete, boron nitride, or magnesium oxide fillers, it achieves pollution-free and efficient heating.
It achieves efficient impeller thermal charging that is pollution-free and energy-saving, reduces labor demand, lowers production costs, and meets environmental protection requirements.
Smart Images
Figure CN223885340U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a device for disassembling a shaft coupling, in particular to a heater for hot mounting a centrifugal pump impeller. BACKGROUND
[0002] Most centrifugal pump impellers are hot mounted, and the traditional process in the hot mounting process is an oxygen-acetylene baking process. In the era of advocating new production forces, the traditional baking process not only wastes labor, but also harms the human body, is harmful to the environment, aggravates the global greenhouse effect, and even pollutes the environment. SUMMARY
[0003] In view of the above-mentioned deficiencies of the prior art, the utility model aims to provide a heater for hot mounting a centrifugal pump impeller.
[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0005] A heater for hot mounting a centrifugal pump impeller comprises two circular cover plates with through holes in the center, a cylindrical inner cover plate, and a cylindrical outer cover plate. The two ends of the inner cover plate are connected to a circular cover plate at the through hole. The two ends of the outer cover plate are connected to a circular cover plate. Coils are wound on the inner cover plate. The two ends of the coil are connected to a high-frequency control cabinet.
[0006] The two ends of the coil have an input plug and an output plug, respectively. The input plug is connected to the high-frequency control cabinet through an input line. The output plug is connected to the high-frequency control cabinet through an output line.
[0007] A filler is installed in the cavity surrounded by the inner cover plate, the outer cover plate, and the two circular cover plates.
[0008] The circular cover plate has heat dissipation holes.
[0009] It also includes a bracket.
[0010] The outer cover plate and the two cover plates are connected through an angle bracket, a stud, a hex nut, and a flat washer.
[0011] The two cover plates are connected through a stud, a hex nut, and a flat washer.
[0012] A handle is installed on the outer cover plate.
[0013] The filler is concrete, boron nitride, or magnesium oxide.
[0014] The coil is spirally wound.
[0015] The high-frequency heating technology is introduced into the hot mounting process of the centrifugal pump impeller, the impeller hot mounting is realized only by relying on electric energy, the operability is high, the matching is flexible, the heating efficiency is high, the application occasions are wide, the service life is long, there is no pollution, and the device is economic and environment-friendly. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 It is a right view schematic diagram. Figure 1
[0018] Figure 3 It is a working state schematic diagram of the utility model.
[0019] Figure 4 It is a structural schematic diagram of the coil.
[0020] Mark number in figure: 1. shaft, 2. impeller, 3. high-frequency control cabinet, 4. heater main body, 5. incoming line, 6. outgoing line, 7. support, 4-1. cover plate, 4-2. outer cover plate, 4-3. double head stud I, 4-4. hexagonal nut I, 4-5. flat washer I, 4-6. angle code, 4-7. filler, 4-8. coil, 4-9. inner cover plate, 4-10. double head stud II, 4-11. hexagonal nut II, 4-12. flat washer II, 4-13. input plug, 4-14. output plug, 4-15. handle, 4-16. heat dissipation hole. DETAILED DESCRIPTION
[0021] As Figure 1 , Figure 2 , Figure 3 indicated, a kind of heater for hot mounting centrifugal pump impeller, heater main body 4 includes two center with through-hole circular cover plate 4-1, one cylindrical inner cover plate 4-9 and one cylindrical outer cover plate 4-2, inner cover plate 4-9 two ends each with one circular cover plate 4-1 at through-hole place meet, outer cover plate 4-2 two ends each with one circular cover plate 4-1 is connected, coil 4-8 is coiled on inner cover plate 4-9, two ends of coil 4-8 are connected with one high-frequency control cabinet 3.
[0022] Two ends of coil 4-8 are respectively provided with an input plug 4-13 and an output plug 4-14, the input plug 4-13 is connected with the high-frequency control cabinet 3 through the incoming line 5, and the output plug 4-14 is connected with the high-frequency control cabinet 3 through the outgoing line 6.
[0023] Filler 4-7 is contained in the cavity surrounded by inner cover plate 4-9, outer cover plate 4-2 and two circular cover plates 4-1.
[0024] There are heat dissipation holes 4-16 on the circular cover plate 4-1.
[0025] Also included is a bracket 7.
[0026] The cover plate 4-2 and the two cover plates 4-1 are connected by an angle code 4-6, a stud 4-3, a hex nut 4-4 and a flat washer 4-5.
[0027] The two cover plates 4-1 are connected by a stud 4-10, a hex nut 4-11 and a flat washer 4-12.
[0028] A handle 4-15 is installed on the cover plate 4-2.
[0029] The filler 4-7 is concrete, boron nitride or magnesium oxide.
[0030] As shown in the figure, the coil 4-8 is spirally wound. Figure 4 The part with a large winding diameter heats the cover plate of the impeller 2, and the part with a small winding diameter heats the tail hub part of the impeller 2.
[0031] The assembly method of the utility model is as follows:
[0032] Place one cover plate 4-1 horizontally, align the inner cover plate 4-9 with the through hole in the cover plate, and then place the coiled coil 4-8 outside the inner cover plate 4-9, with an even distance from the outer side of the inner cover plate 4-9, align the outer cover plate 4-2 with the outer circle of the cover plate 4-1, and buckle the other cover plate 4-1.
[0033] The two end cover plates 4-1 are connected by a stud 4-10, a hex nut 4-11 and a flat washer 4-12.
[0034] The two end cover plates 4-1 and the outer cover plate 4-2 are connected by an angle code 4-6, a stud 4-3, a hex nut 4-4 and a flat washer 4-5.
[0035] The handle 4-15 is installed on the outer cover plate 4-2.
[0036] The input plug 4-13 and the output plug 4-14 are respectively connected to the two ends of the coil 4-8.
[0037] The filler 4-7 is injected into the heater 4 through the heat dissipation hole 4-16 on the cover plate 4-1, and waits for a period of time, and the production is completed after the filler solidifies.
[0038] The working principle of the utility model is as follows:
[0039] In use, the two ends of the shaft 1 are placed on the support 7, the impeller 2 is sleeved on the shaft 1, and the heater body 4 is also sleeved on the shaft 1; the heater is in contact with the impeller cover plate; the power supply is turned on; when the high-frequency current passes through the coil, an alternating magnetic field is formed around the coil; the impeller 2 in the alternating magnetic field is heated, thereby realizing the heating process of the impeller 2. The current size on the high-frequency control cabinet 3 can be adjusted to control the speed of the heating process; the greater the current, the shorter the heating time.
[0040] High-frequency heating is a method for realizing rapid and effective heating by using eddy current effect generated by electromagnetic induction, which involves electromagnetic induction, eddy current effect, Joule heating and physical processes in the heating process. Therefore, the high-frequency heating technology is introduced into the hot mounting process of the centrifugal pump impeller, and the impeller hot mounting is realized only by relying on electric energy, without causing environmental pollution, saving energy, liberating labor, saving production cost, and being economic and environmental in general.
[0041] The preferred embodiments of the utility model are described above, and it should be noted that, for those skilled in the art, without departing from the overall concept of the utility model, some changes and improvements can be made, which should be considered as the protection range of the utility model.
Claims
1. A heater for a hot-mounted centrifugal pump impeller, characterized by: It comprises two center-hole circular cover plates (4-1), a cylindrical inner cover plate (4-9) and a cylindrical outer cover plate (4-2), the inner cover plate (4-9) is connected with one of the circular cover plates (4-1) at the center hole at each end, the outer cover plate (4-2) is connected with one of the circular cover plates (4-1) at each end, the coil (4-8) is wound on the inner cover plate (4-9), and the two ends of the coil (4-8) are connected with a high-frequency control cabinet (3).
2. The heater for a hot-mounted centrifugal pump impeller of claim 1, wherein: The two ends of the coil (4-8) are respectively provided with an input plug (4-13) and an output plug (4-14), the input plug (4-13) is connected with the high-frequency control cabinet (3) through an input wire (5), and the output plug (4-14) is connected with the high-frequency control cabinet (3) through an output wire (6).
3. The heater for a hot-mounted centrifugal pump impeller of claim 1, wherein: The cavity surrounded by the inner cover plate (4-9), the outer cover plate (4-2) and the two circular cover plates (4-1) is filled with a filler (4-7).
4. The heater for a hot-mounted centrifugal pump impeller of claim 3, wherein: The circular cover plate (4-1) is provided with a heat dissipation hole (4-16).
5. The heater for a hot-mounted centrifugal pump impeller of claim 4, wherein: It further comprises a support (7).
6. The heater for a hot-mounted centrifugal pump impeller of claim 4, wherein: The outer cover plate (4-2) and the two cover plates (4-1) are connected through an angle code (4-6), a stud bolt I (4-3), a hexagonal nut I (4-4) and a flat washer I (4-5).
7. The heater for a hot-mounted centrifugal pump impeller of claim 4, wherein: The two cover plates (4-1) are connected through a stud bolt II (4-10), a hexagonal nut II (4-11) and a flat washer II (4-12).
8. The heater for a hot-mounted centrifugal pump impeller of claim 4, wherein: The outer cover plate (4-2) is provided with a handle (4-15).
9. The heater for a hot-mounted centrifugal pump impeller of claim 3, wherein: The filler (4-7) is concrete, boron nitride or magnesium oxide.
10. The heater for a hot-mounted centrifugal pump impeller of claim 2, wherein: The coil (4-8) is spirally wound.