Heat supply unit for medium-temperature medium-pressure heat supply

Abstract

The heat supply unit comprises a shell, the inner wall of the shell is fixedly connected with an inner container and a cleaning mechanism through a fixing shaft, and the cleaning mechanism comprises a transverse cylinder, a limiting rod, a scraper blade, a circular plate, an air inlet groove, a sliding groove, a sliding plug, a knocking rod, a spring, a driving assembly and a pumping assembly. A transverse barrel is fixedly connected to the inner wall of the shell, one end of the transverse barrel penetrates through the inner wall of the inner container, a limiting rod is slidably connected to the inner wall of the transverse barrel, a scraper is fixedly connected to the side wall of the limiting rod, the side wall of the scraper is attached to the inner wall of the inner container, and a circular plate is fixedly connected to the side wall of the scraper. The driving motor rotates to drive the scraping plate to move back and forth in the inner container, the scraping plate can scrape water scale on the inner wall of the inner container, and therefore the water scale is rapidly cleaned, corrosion of the water scale to the inner container is reduced, the service life of the inner container is prolonged, and compared with manual cleaning, the water scale cleaning device is more time-saving and labor-saving due to the adoption of a mechanical structure.

Description

Technical Field

[0001] The utility model relates to the technical field of heating units, in particular to a heating unit for medium-temperature and medium-pressure heating. Background Art

[0002] In most parts of northern my country, residential heating is required due to the long cold period in winter. Generally, centrally heated residential buildings are heated through municipal hot water pipelines, but the source of hot water is the heater that heats the water, which is then pumped into the pipes for heat exchange to provide heating.

[0003] Existing heating units usually have an outer shell and an inner tank. Water is heated in the inner tank and then pumped out through a heating pipe. The heated water flows in the pipe to provide heating. However, frequent water injection and heating in the inner tank can easily form layers of scale in the inner tank. After long-term use, excessive scale will corrode the inner tank, thereby reducing the service life of the inner tank. Manual cleaning is difficult, time-consuming and labor-intensive.

[0004] Based on this, we propose a heating unit for medium-temperature and medium-pressure heating. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a heating unit for medium-temperature and medium-pressure heating.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A heating unit for medium-temperature and medium-pressure heating, comprising a shell, the inner wall of which is fixedly connected to an inner tank via a fixed shaft;

[0008] The cleaning mechanism comprises a transverse cylinder, a limiting rod, a scraper, a circular plate, an air inlet groove, a slide groove, a sliding plug, a knocking rod, a spring, a driving assembly and a pump suction assembly, the inner wall of the outer shell is fixedly connected with the transverse cylinder, one end of the transverse cylinder is penetrated to penetrate the inner wall of the inner tank, the inner wall of the transverse cylinder is slidably connected with the limiting rod, the side wall of the limiting rod is fixedly connected with the scraper, the side wall of the scraper is fitted with the inner wall of the inner tank, the side wall of the scraper is fixedly connected with the circular plate, the circular plate is provided with an air inlet groove, the inner wall of the air inlet groove is provided with a plurality of sliding grooves, the inner walls of the plurality of sliding grooves are all sealed and slidably connected with sliding plugs, the side wall of the sliding plug is fixedly connected with the knocking rod, the knocking rod is penetrated through the side wall of the circular plate, a spring is fixedly connected between the side wall of the sliding plug and the inner wall of the slide groove, the driving assembly is arranged on the outer shell, and the pump suction assembly is arranged on the outer shell.

[0009] Preferably, the drive assembly includes a motor fixedly connected to the side wall of the outer shell through a bracket, the inner wall of the inner tank is rotatably connected to a first reciprocating screw, the side wall of the first reciprocating screw is threadedly connected to the scraper and the circular plate, and the output end of the motor passes through the outer shell and the side wall of the inner tank and is fixedly connected to the first reciprocating screw.

[0010] Preferably, the pump suction assembly includes a cavity opened in the lower end of the shell, the inner wall of the cavity is sealed and slidably connected with a slide, the cavity is connected with the air inlet groove through a connecting pipe, the inner wall of the cavity is slidably connected with a slider, the side wall of the slider close to the slider is symmetrically fixedly connected with two push rods, the other ends of the two push rods are fixedly connected to the skateboard, the inner wall of the cavity is rotatably connected with a second reciprocating screw, and the side wall of the second reciprocating screw is threadedly connected to the slider.

[0011] Preferably, the pump suction assembly also includes a driving wheel fixedly connected to the side wall of the motor output end, one end of the second reciprocating screw passes through the side wall of the shell and is fixedly connected to a driven wheel, and the driving wheel is connected to the driven wheel through a synchronous belt.

[0012] Preferably, the upper end of the inner tank is fixedly connected with a water inlet pipe, the upper end of the water inlet pipe is arranged to pass through the upper end of the outer shell, and the side wall of the inner tank is fixedly connected with a heating pipe, the other end of the heating pipe is arranged to pass through the side wall of the outer shell.

[0013] Preferably, the lower end of the inner tank is fixedly connected with a drainage pipe, the lower end of the drainage pipe is arranged to penetrate the lower end of the outer shell, and a valve is installed at the lower end of the drainage pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. By setting up a cleaning mechanism and a driving component, the scraper can be driven to move back and forth in the inner tank by driving the motor to rotate. The scraper will scrape off the scale on the inner wall of the inner tank, thereby quickly cleaning the scale, reducing its corrosion to the inner tank, and increasing the service life of the inner tank. The mechanical structure adopted is more time-saving and labor-saving than manual cleaning.

[0016] 2. By setting up a pump suction component, when the scraper scrapes the scale on the inner tank, multiple knocking heads will continuously knock on the inner wall of the inner tank, so that the scale is broken and loosened, making it easier for the scraper to scrape it off. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a heating unit for medium-temperature and medium-pressure heating proposed by the utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the middle circular plate;

[0019] Figure 3for Figure 1 A magnified schematic diagram of the structure at center A;

[0020] Figure 4 for Figure 1 A magnified schematic diagram of the structure at B in the figure.

[0021] In the figure: 1 outer shell, 2 inner tank, 3 horizontal cylinder, 4 limit rod, 5 scraper, 6 circular plate, 7 air inlet groove, 8 slide groove, 9 slide plug, 10 knock rod, 11 spring, 12 motor, 13 first reciprocating screw, 14 cavity, 15 slide plate, 16 connecting pipe, 17 slider, 18 push rod, 19 second reciprocating screw, 20 driving wheel, 21 driven wheel, 22 water inlet pipe, 23 heating pipe, 24 miscellaneous pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] Reference Figure 1-4 A heating unit for medium-temperature and medium-pressure heating, comprising a shell 1, a support column is symmetrically fixedly connected to the lower end of the shell 1, and a heater is installed in the shell 1 to heat the water in the inner tank 2. The heater is a prior art and will not be described in detail here. The inner wall of the shell 1 is fixedly connected to the inner tank 2 through a fixed shaft;

[0024] A cleaning mechanism comprises a transverse cylinder 3, a limiting rod 4, a scraper 5, a circular plate 6, an air inlet groove 7, a slide groove 8, a sliding plug 9, a knocking rod 10, a spring 11, a driving assembly and a pump suction assembly. The inner wall of the outer shell 1 is fixedly connected with the transverse cylinder 3, one end of the transverse cylinder 3 is penetrated to penetrate the inner wall of the inner liner 2, the inner wall of the transverse cylinder 3 is slidably connected with the limiting rod 4, the side wall of the limiting rod 4 is fixedly connected with the scraper 5, the side wall of the scraper 5 is fitted with the inner wall of the inner liner 2, the side wall of the scraper 5 is fixedly connected with the circular plate 6, the circular plate 6 is provided with an air inlet groove 7, the inner wall of the air inlet groove 7 is provided with a plurality of slide grooves 8, the inner walls of the plurality of slide grooves 8 are all sealed and slidably connected with the sliding plug 9, the side wall of the sliding plug 9 is fixedly connected with the knocking rod 10, the knocking rod 10 is set to penetrate the side wall of the circular plate 6, a spring 11 is fixedly connected between the side wall of the sliding plug 9 and the inner wall of the slide groove 8, a driving assembly is provided on the outer shell 1, and a pump suction assembly is provided on the outer shell 1.

[0025] The driving assembly includes a motor 12 fixedly connected to the side wall of the outer shell 1 through a bracket, and the inner wall of the inner liner 2 is rotatably connected to a first reciprocating screw 13. The side wall of the first reciprocating screw 13 is threadedly connected to the scraper 5 and the circular plate 6. The output end of the motor 12 passes through the side walls of the outer shell 1 and the inner liner 2 and is fixedly connected to the first reciprocating screw 13.

[0026] It should be noted that the limiting rod 4 can limit the position of the scraper 5 to prevent it from rotating together with the first reciprocating screw 13 .

[0027] The pump suction assembly includes a cavity 14 opened in the lower end of the shell 1, and the inner wall of the cavity 14 is sealed and slidably connected with a slide plate 15. The cavity 14 is connected to the air inlet groove 7 through a connecting pipe 16. The inner wall of the cavity 14 is slidably connected with a slider 17. The side wall of the slider 17 near the slide plate 15 is symmetrically fixedly connected with two push rods 18, and the other ends of the two push rods 18 are fixedly connected to the slide plate 15. The inner wall of the cavity 14 is rotatably connected with a second reciprocating screw 19, and the side wall of the second reciprocating screw 19 is threadedly connected to the slider 17.

[0028] The pumping assembly also includes a driving wheel 20 fixedly connected to the side wall of the output end of the motor 12. One end of the second reciprocating screw 19 passes through the side wall of the housing 1 and is fixedly connected to a driven wheel 21. The driving wheel 20 is connected to the driven wheel 21 through a synchronous belt.

[0029] It should be noted that a through hole is opened on the inner wall of the cavity 14 close to the driven wheel 21 . When the slide plate 15 slides sealingly on the inner wall of the cavity 14 , the through hole can balance the pressure in the cavity 14 .

[0030] The upper end of the inner tank 2 is fixedly connected to a water inlet pipe 22 , and the upper end of the water inlet pipe 22 is arranged to penetrate the upper end of the outer shell 1 ; the side wall of the inner tank 2 is fixedly connected to a heating pipe 23 , and the other end of the heating pipe 23 is arranged to penetrate the side wall of the outer shell 1 .

[0031] The lower end of the inner tank 2 is fixedly connected with a drainage pipe 24 , the lower end of the drainage pipe 24 is arranged to penetrate the lower end of the outer shell 1 , and a valve is installed at the lower end of the drainage pipe 24 .

[0032] In the utility model, water is injected into the inner tank 2 through the water inlet pipe 22, and the heater installed in the outer shell 1 is started to heat the water in the inner tank 2. The hot water can be discharged through the heating pipe 23 and then enter the pipeline for heating.

[0033] When it is necessary to scrape the scale on the inner wall of the inner tank 2, the motor 12 can be driven to rotate, driving the first reciprocating screw 13 and the driving wheel 20 to rotate. The rotation of the first reciprocating screw 13 will drive the scraper 5 to move back and forth in the inner tank 2, and the scraper 5 will scrape the scale on the inner wall of the inner tank 2. The rotation of the driving wheel 20 will drive the driven wheel 21 to rotate, driving the second reciprocating screw 19 to rotate, driving the slider 17 to slide back and forth on the inner wall of the cavity 14, and the slider 17 drives the slide plate 15 in the cavity 14 through the push rod 18. The inner wall of the inner tank 2 reciprocates and slides in a sealed manner, and then the air in the cavity 14 is pumped into the air inlet groove 7 through the connecting pipe 16, and then the air in the air inlet groove 7 is pumped back to the cavity 14 through the connecting pipe 16, and so on, the pressure in the air inlet groove 7 repeatedly increases and decreases, and then the sliding plug 9 is driven to slide reciprocally on the inner wall of the sliding groove 8, and the knocking rod 10 is driven to continuously knock the inner wall of the inner tank 2, so that the scale on the inner wall of the inner tank 2 can be broken or loosened, which is more convenient for the scraper 5 to scrape it.

[0034] Finally, the valve at the lower end of the drainage pipe 24 is opened, and the scale scraped off from the inner tank 2 will be discharged through the drainage pipe 24 along with the water.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A heating unit for medium temperature and medium pressure heating, characterized in that: include: An outer shell (1), the inner wall of the outer shell (1) being fixedly connected to an inner liner (2) via a fixed shaft; A cleaning mechanism, the cleaning mechanism comprising a transverse cylinder (3), a limiting rod (4), a scraper (5), a circular plate (6), an air inlet groove (7), a slide groove (8), a sliding plug (9), a knocking rod (10), a spring (11), a driving assembly and a pumping assembly, the inner wall of the outer shell (1) is fixedly connected with the transverse cylinder (3), one end of the transverse cylinder (3) is arranged to penetrate the inner wall of the inner liner (2), the inner wall of the transverse cylinder (3) is slidably connected with the limiting rod (4), the side wall of the limiting rod (4) is fixedly connected with the scraper (5), the side wall of the scraper (5) is in contact with the inner wall of the inner liner (2), and the The scraper (5) side wall is fixedly connected to a circular plate (6), an air inlet groove (7) is provided in the circular plate (6), a plurality of slide grooves (8) are provided in the inner wall of the air inlet groove (7), the inner walls of the plurality of slide grooves (8) are all sealed and slidably connected to a sliding plug (9), the side wall of the sliding plug (9) is fixedly connected to a knocking rod (10), the knocking rod (10) is arranged to penetrate the side wall of the circular plate (6), a spring (11) is fixedly connected between the side wall of the sliding plug (9) and the inner wall of the slide groove (8), a driving component is arranged on the housing (1), and a pump suction component is arranged on the housing (1).

2. A heating unit for medium temperature and medium pressure heating according to claim 1, characterized in that: in: The driving assembly comprises a motor (12) fixedly connected to the side wall of the outer shell (1) via a bracket; the inner wall of the inner liner (2) is rotatably connected to a first reciprocating screw (13); the side wall of the first reciprocating screw (13) is threadedly connected to the scraper (5) and the circular plate (6); the output end of the motor (12) passes through the side wall of the outer shell (1) and the inner liner (2) and is fixedly connected to the first reciprocating screw (13).

3. A heating unit for medium temperature and medium pressure heating according to claim 2, characterized in that: in: The pumping assembly comprises a cavity (14) opened in the lower end of the shell (1), the inner wall of the cavity (14) is sealed and slidably connected to a slide plate (15), the cavity (14) is connected to the air inlet groove (7) through a connecting pipe (16), the inner wall of the cavity (14) is slidably connected to a slider (17), the side wall of the slider (17) is symmetrically fixedly connected to two push rods (18), the other ends of the two push rods (18) are fixedly connected to the slide plate (15), the inner wall of the cavity (14) is rotatably connected to a second reciprocating screw (19), and the side wall of the second reciprocating screw (19) is threadedly connected to the slider (17).

4. A heating unit for medium-temperature and medium-pressure heating according to claim 3, characterized in that: in: The pumping assembly further comprises a driving wheel (20) fixedly connected to the side wall of the output end of the motor (12); one end of the second reciprocating screw (19) passes through the side wall of the housing (1) and is fixedly connected to a driven wheel (21); the driving wheel (20) is connected to the driven wheel (21) via a synchronous belt.

5. A heating unit for medium-temperature and medium-pressure heating according to claim 4, characterized in that: in: The upper end of the inner tank (2) is fixedly connected to a water inlet pipe (22), and the upper end of the water inlet pipe (22) is arranged to penetrate the upper end of the outer shell (1). The side wall of the inner tank (2) is fixedly connected to a heat supply pipe (23), and the other end of the heat supply pipe (23) is arranged to penetrate the side wall of the outer shell (1).

6. A heating unit for medium-temperature and medium-pressure heating according to claim 5, characterized in that: in: The lower end of the inner container (2) is fixedly connected to a drainage pipe (24), the lower end of the drainage pipe (24) is arranged to penetrate the lower end of the outer shell (1), and a valve is installed at the lower end of the drainage pipe (24).

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