Natural gas heat supply heat exchange device

Abstract

The utility model belongs to the technical field of heat exchange, and particularly relates to a natural gas heat supply heat exchange device which comprises an outer cylinder. An inner cylinder is fixed in the middle of the interior of the outer cylinder, a first dirt scraping mechanism is arranged above the outer cylinder, a slag removing mechanism is arranged below the first dirt scraping mechanism, and the slag removing mechanism is located at the bottom of the inner cylinder; by arranging the slag removal mechanism, after the inner wall of the inner cylinder is cleaned, impurities can fall to the bottom of the inner cylinder, an L-shaped scraper drives a transmission rod to move under the limiting of a limiting groove in the slag removal mechanism, and the transmission rod drives a rotating seat to rotate under the cooperation of a bearing in the rotating seat and a through pipe; and the impurities are discharged out of the inner cylinder through the slag discharging pipe which is connected with the bottom of the outer cylinder in a penetrating manner, so that the impurities are conveniently discharged out of the inner cylinder, and the situation that the impurities are adhered to the inner wall of the inner cylinder again, so that the heat exchange efficiency of natural gas heat supply is influenced is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat exchange, in particular to a natural gas heating heat exchange device. Background Art

[0002] Natural gas refers to all gases that exist naturally in nature, including gases formed by various natural processes in the atmosphere, hydrosphere, and lithosphere. As people's living standards improve, the comfort of the living environment is increasingly valued. Based on this, in some colder areas, natural gas heating has become a necessity for people's lives.

[0003] In the prior art, a natural gas heating heat exchange device is composed of an outer cylinder, a water chamber, a heating chamber, and a descaling mechanism. When performing natural gas heating heat exchange, natural gas and air are injected into the heating chamber, the natural gas in the heating chamber is ignited, and the water in the water chamber in the outer cylinder is processed by heat transfer. When the natural gas burns for a long time, impurities will adhere to the heating chamber, and the impurities will be scraped off by a scraper in the descaling mechanism.

[0004] In the current prior art, when performing natural gas heating heat exchange, after the impurities are scraped off by the descaling mechanism, it is not convenient to discharge the impurities from the inner cylinder, and secondary adhesion is likely to occur, thereby affecting the effect of heat energy exchange; therefore, a natural gas heating heat exchange device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art and solve the problem that after the impurities are scraped off by the descaling mechanism, it is not convenient to discharge the impurities from the inner cylinder, and secondary adhesion is prone to occur, thus affecting the heat energy exchange, a natural gas heating heat exchange device is proposed.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: a natural gas heating heat exchange device described in the utility model comprises an outer cylinder; an inner cylinder is fixed in the middle of the outer cylinder, a first exhaust gas hole is opened on the same side of the outer cylinder and the inner cylinder, an exhaust pipe is fixed above the first exhaust gas hole, and a filter is arranged in the middle of the exhaust pipe, a first scraping mechanism is arranged above the outer cylinder, a slag cleaning mechanism is arranged below the first scraping mechanism, and the slag cleaning mechanism is located at the bottom of the inner cylinder;

[0007] The slag cleaning mechanism includes a through pipe, which is connected to the middle of the bottom of the inner cylinder. A bearing is fixed on the circumferential surface of the through pipe, and a rotating seat is installed on the circumferential surface of the bearing. A transmission rod is fixed on one side of the rotating seat, and a limiting groove is provided on the top of the transmission rod. A slag cleaning plate is installed on the other side of the rotating seat.

[0008] Preferably, a water cavity is provided between the outer cylinder and the inner cylinder, and a slide groove is provided on the inner wall above the water cavity. The slide groove is provided to facilitate the movement of the second scraping mechanism.

[0009] Preferably, the first scraping mechanism includes a motor, which is fixed above the outer cylinder. The motor rotation shaft extends to the inside of the inner cylinder, and a mounting block is fixed on the rotation shaft. An L-shaped scraper is installed on one side of the mounting block. The L-shaped scraper is in contact with the inner wall of the inner cylinder. By setting the L-shaped scraper, it is convenient to scrape the inner wall of the inner cylinder 2 in all directions.

[0010] Preferably, a transmission mechanism is fixed between the top of the inner cylinder and the inside of the outer cylinder, and the transmission mechanism includes a disc seat, which is fixed between the top of the inner cylinder and the inside of the outer cylinder. A placement groove is provided on one side of the disc seat, a main gear is provided in the placement groove, and the main gear is installed in the middle of the motor rotating shaft, and a driven gear is meshed and rotated on one side of the main gear, and the edge of the driven gear is located on the outside of the placement groove, and a second exhaust hole is provided on the other side of the disc seat, and the second exhaust hole is opposite to the first exhaust hole, and the discharge of exhaust gas is convenient by the second exhaust hole being opposite to the first exhaust hole.

[0011] Preferably, the slide groove is slidably provided with a second scraping mechanism, the second scraping mechanism includes a gear ring, the gear ring is slidably provided in the slide groove through an annular slider on the circumferential surface, a scraper is installed on one side of the bottom of the gear ring, and the scraper is in contact with the surface of the inner cylinder, the scraper (603) is limited in the limiting groove (405), the gear ring is meshed with the driven gear, and by providing the gear ring, it is convenient to drive the scraper to move in a circular manner.

[0012] Preferably, a natural gas pipe, an air pipe and a slag discharge pipe are arranged side by side at the bottom of the outer cylinder, and are connected with the inner cylinder. A water inlet pipe and a water outlet pipe are symmetrically arranged on one side of the outer cylinder, and the water inlet pipe, the water outlet pipe and the water cavity are connected with each other. By arranging the water inlet pipe and the water outlet pipe, it is convenient to inject water into and discharge water from the water cavity.

[0013] Beneficial effects of the utility model:

[0014] The utility model provides a natural gas heating heat exchange device, which is provided with a slag cleaning mechanism. After the inner wall of the inner cylinder is cleaned, impurities will fall to the bottom of the inner cylinder, and the transmission rod will be driven to move under the limit of the limit groove in the slag cleaning mechanism by the L-shaped scraper, and the transmission rod will drive the rotating seat to rotate under the cooperation of the internal bearing of the rotating seat and the through pipe. The rotation of the rotating seat drives the slag cleaning plate on the other side to rotate, so that the impurities at the bottom of the inner cylinder are concentrated, and the impurities are discharged from the inner cylinder through the slag discharge pipe connected through the bottom of the outer cylinder, which is convenient for discharging the impurities from the inner cylinder, and prevents the impurities from adhering to the inner wall of the inner cylinder again, so as to affect the efficiency of the natural gas heating heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a schematic diagram of the overall structure;

[0017] Figure 2 It is a cross-sectional view of the overall structure;

[0018] Figure 3 It is a partial cross-sectional view of the slag cleaning mechanism;

[0019] Figure 4 It is a partial cross-sectional view of the transmission mechanism;

[0020] Figure 5 1 is a schematic diagram of the mechanism of the second dirt scraping mechanism;

[0021] Legend:

[0022] 1. Outer cylinder; 101. Water cavity; 102. Slideway; 2. Inner cylinder; 3. First scraping mechanism; 301. Motor; 302. Mounting block; 303. L-shaped scraper; 4. Deslagging mechanism; 401. Through pipe; 402. Bearing; 403. Rotating seat; 404. Transmission rod; 405. Limiting groove; 406. Deslagging plate; 5. Transmission mechanism; 501. Disc seat; 502. Placement groove; 503. Main gear; 504. Driven gear; 505. Second exhaust hole; 6. Second scraping mechanism; 601. Gear ring; 602. Annular slider; 603. Scraper; 7. Natural gas pipe; 8. Air pipe; 9. Deslagging pipe; 10. First exhaust hole; 11. Exhaust pipe; 12. Filter; 13. Water inlet pipe; 14. Water outlet pipe. DETAILED DESCRIPTION

[0023] 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 described embodiments 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.

[0024] Specific examples are given below.

[0025] See also Figure 1-Figure 5The utility model provides a natural gas heating heat exchange device, comprising an outer cylinder 1; an inner cylinder 2 is fixed in the middle of the outer cylinder 1, a first exhaust hole 10 is opened on the same side of the outer cylinder 1 and the inner cylinder 2, a water cavity 101 is opened between the outer cylinder 1 and the inner cylinder 2, a slide groove 102 is opened on the inner wall above the water cavity 101, an exhaust pipe 11 is fixed above the first exhaust hole 10, and a filter 12 is arranged in the middle of the exhaust pipe 11, a first scraping mechanism 3 is arranged above the outer cylinder 1, a slag cleaning mechanism 4 is arranged below the first scraping mechanism 3, and the slag cleaning mechanism 4 is located at the bottom of the inner cylinder 2;

[0026] The bottom of the outer cylinder 1 is provided with a natural gas pipe 7, an air pipe 8 and a slag discharge pipe 9 in parallel, and is connected with the inner cylinder 2. A water inlet pipe 13 and a water outlet pipe 14 are symmetrically provided on one side of the outer cylinder 1, and the water inlet pipe 13 and the water outlet pipe 14 are connected with the water cavity 101. The first scraping mechanism 3 includes a motor 301, and the motor 301 is fixed above the outer cylinder 1. The rotating shaft of the motor 301 extends to the inside of the inner cylinder 2, and a mounting block 302 is fixed on the rotating shaft. One side of the mounting block 302 is provided with a An L-shaped scraper 303 is installed, and the L-shaped scraper 303 is in contact with the inner wall of the inner cylinder 2. The slag cleaning mechanism 4 includes a through pipe 401, and the through pipe 401 is connected to the middle of the bottom of the inner cylinder 2. A bearing 402 is fixed on the circumferential surface of the through pipe 401, and a rotating seat 403 is installed on the circumferential surface of the bearing 402. A transmission rod 404 is fixed on one side of the rotating seat 403, and a limiting groove 405 is provided on the top of the transmission rod 404. A slag cleaning plate 406 is installed on the other side of the rotating seat 403.

[0027] During operation, when performing natural gas heat exchange, water is injected into the water cavity 101 between the outer cylinder 1 and the inner cylinder 2 through the water inlet pipe 13, and natural gas and air are injected into the inner cylinder 2 through the natural gas pipe 7 and the air pipe 8. The natural gas in the inner cylinder 2 is ignited by the igniter to process the inner cylinder 2, so that the water in the water cavity 101 between the inner cylinder 2 and the outer cylinder 1 is heat exchanged and heated. After the water is heated, the hot water is drained through the water outlet pipe 14 for subsequent use. The exhaust gas from the combustion of natural gas can be discharged through the inner cylinder 2 and the outer cylinder 1. The first exhaust hole 10 is provided to discharge into the exhaust pipe 11, and is discharged after being filtered by the filter 12 in the middle of the exhaust pipe 11. During the long-term combustion of natural gas, impurities will remain on the inner wall of the inner tube 2. By starting the motor 301 in the first scraping mechanism 3 above the outer tube 1, the motor 301 drives the mounting block 302 at the bottom of the rotating shaft to rotate, and the L-shaped scraper 303 is driven by the rotation of the mounting block 302 to scrape and clean the inner wall of the inner tube 2, thereby improving the better transfer of heat energy from the combustion of natural gas.

[0028] Furthermore, a transmission mechanism 5 is fixed at the top of the inner cylinder 2 and the inside of the outer cylinder 1. The transmission mechanism 5 includes a disc seat 501. The disc seat 501 is fixed between the top of the inner cylinder 2 and the inside of the outer cylinder 1. A placement groove 502 is opened on one side of the disc seat 501. A main gear 503 is arranged in the placement groove 502, and the main gear 503 is installed in the middle of the rotating shaft of the motor 301. A driven gear 504 is meshed and rotated on one side of the main gear 503. The edge of the driven gear 504 is located on the outside of the placement groove 502. A second exhaust hole 505 is provided on the other side of the seat 501, and the second exhaust hole 505 is opposite to the first exhaust hole 10. A second scraping mechanism 6 is slidably arranged in the slide groove 102. The second scraping mechanism 6 includes a gear ring 601. The gear ring 601 is slidably arranged in the slide groove 102 through an annular slider 602 on the circumferential surface. A scraper 603 is installed on one side of the bottom of the gear ring 601, and the scraper 603 is in contact with the surface of the inner cylinder 2. The scraper 603 is limited in the limiting groove 405, and the gear ring 601 is meshed with the driven gear 504.

[0029] During operation, after the inner wall of the inner cylinder 2 is cleaned, the impurities will fall off to the bottom of the inner cylinder 2, and the L-shaped scraper 303 will drive the transmission rod 404 to move under the limit of the limit groove 405 in the slag cleaning mechanism 4, and the transmission rod 404 will drive the rotating seat 403 to rotate under the cooperation of the bearing 402 inside the rotating seat 403 and the through pipe 401. The rotation of the rotating seat 403 drives the slag cleaning plate 406 on the other side to rotate, and the impurities at the bottom of the inner cylinder 2 are concentrated, and the impurities are discharged from the inner cylinder 2 through the slag discharge pipe 9 connected to the bottom of the outer cylinder 1. Due to the long-term heating of hot water, the impurities in the water quality will The solidified particles adhere to the outer wall of the inner cylinder 2, which reduces the heating effect. By starting the motor 301 in the first scraping mechanism 3, the main gear 503 in the placement groove 502 in the transmission mechanism 5 is driven to rotate. The main gear 503 and the driven gear 504 are meshed with each other, so that the driven gear 504 rotates. The driven gear 504 is meshed with the toothed ring 601 in the second scraping mechanism 6, so that the toothed ring 601 drives the annular slider 602 to rotate in the slide groove 102. The rotation of the toothed ring 601 drives the bottom scraper 603 to rotate to scrape off the impurities on the outer wall of the inner cylinder 2.

[0030] Working principle: When performing natural gas heat exchange, water is injected into the water cavity 101 between the outer tube 1 and the inner tube 2 through the water inlet pipe 13, and natural gas and air are injected into the inner tube 2 through the natural gas pipe 7 and the air pipe 8. The natural gas in the inner tube 2 is ignited by the igniter to process the inner tube 2, so that the water in the water cavity 101 between the inner tube 2 and the outer tube 1 is heat exchanged and heated. After the water is heated, the hot water is drained through the water outlet pipe 14 for subsequent use. The exhaust gas from the combustion of natural gas can be discharged into the first exhaust hole 10 opened in the inner tube 2 and the outer tube 1. The gas enters the exhaust pipe 11 and is then discharged after being filtered by the filter 12 in the middle of the exhaust pipe 11. During the long-term combustion of natural gas, impurities will remain on the inner wall of the inner tube 2. By starting the motor 301 in the first scraping mechanism 3 above the outer tube 1, the motor 301 drives the mounting block 302 at the bottom of the rotating shaft to rotate. The mounting block 302 rotates to drive the L-shaped scraper 303 to scrape and clean the inner wall of the inner tube 2. After the inner wall of the inner tube 2 is cleaned, the impurities will fall off to the bottom of the inner tube 2 and are removed by the L-shaped scraper 303 in the slag cleaning mechanism 4. The transmission rod 404 is driven to move under the limit of the middle limit groove 405, and the transmission rod 404 drives the rotating seat 403 to rotate under the cooperation of the bearing 402 inside the rotating seat 403 and the through pipe 401. The rotation of the rotating seat 403 drives the slag cleaning plate 406 on the other side to rotate, so as to collect the impurities at the bottom of the inner cylinder 2, and discharge the impurities from the inner cylinder 2 through the slag discharge pipe 9 connected through the bottom of the outer cylinder 1. Due to the long-term heating of hot water, the impurities in the water will solidify and adhere to the outer wall of the inner cylinder 2, so that the heating effect is reduced, and the first scraping mechanism is started The motor 301 in the transmission mechanism 5 works, driving the main gear 503 in the placement groove 502 to rotate. The main gear 503 and the driven gear 504 are meshed with each other, so that the driven gear 504 rotates. The driven gear 504 is meshed with the toothed ring 601 in the second scraping mechanism 6, so that the toothed ring 601 drives the annular slider 602 to rotate in the slide groove 102. The rotation of the toothed ring 601 drives the bottom scraper 603 to rotate to scrape impurities from the outer wall of the inner tube 2, thereby improving the better transmission of the heat energy of the natural gas combustion.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A natural gas heating heat exchange device, characterized in that: The invention comprises an outer cylinder (1); an inner cylinder (2) is fixed in the middle of the outer cylinder (1); a first exhaust hole (10) is opened on the same side of the outer cylinder (1) and the inner cylinder (2); an exhaust pipe (11) is fixed above the first exhaust hole (10); a filter (12) is arranged in the middle of the exhaust pipe (11); a first scraping mechanism (3) is arranged above the outer cylinder (1); a slag cleaning mechanism (4) is arranged below the first scraping mechanism (3); and the slag cleaning mechanism (4) is located at the bottom of the inner cylinder (2); The slag cleaning mechanism (4) comprises a through pipe (401), the through pipe (401) is connected to the middle of the bottom of the inner cylinder (2), a bearing (402) is fixed on the circumferential surface of the through pipe (401), a rotating seat (403) is installed on the circumferential surface of the bearing (402), a transmission rod (404) is fixed on one side of the rotating seat (403), a limiting groove (405) is provided on the top end of the transmission rod (404), and a slag cleaning plate (406) is installed on the other side of the rotating seat (403).

2. A natural gas heating heat exchange device according to claim 1, characterized in that: A water cavity (101) is provided between the outer cylinder (1) and the inner cylinder (2), and a sliding groove (102) is provided on the inner wall above the water cavity (101).

3. A natural gas heating heat exchange device according to claim 1, characterized in that: The first scraping mechanism (3) comprises a motor (301), the motor (301) being fixed above the outer cylinder (1), the rotating shaft of the motor (301) extending into the interior of the inner cylinder (2), and a mounting block (302) being fixed on the rotating shaft, an L-shaped scraper (303) being mounted on one side of the mounting block (302), and the L-shaped scraper (303) being in contact with the inner wall of the inner cylinder (2).

4. A natural gas heating heat exchange device according to claim 1, characterized in that: A transmission mechanism (5) is fixed between the top of the inner cylinder (2) and the inside of the outer cylinder (1), and the transmission mechanism (5) comprises a disc seat (501). The disc seat (501) is fixed between the top of the inner cylinder (2) and the inside of the outer cylinder (1). A placement groove (502) is provided on one side of the disc seat (501), a main gear (503) is provided in the placement groove (502), and the main gear (503) is installed in the middle of the rotating shaft of the motor (301). A driven gear (504) is meshed and rotated on one side of the main gear (503), and the edge of the driven gear (504) is located on the outside of the placement groove (502). A second exhaust hole (505) is provided on the other side of the disc seat (501), and the second exhaust hole (505) is opposite to the first exhaust hole (10).

5. A natural gas heating heat exchange device according to claim 2, characterized in that: The slide groove (102) is slidably provided with a second scraping mechanism (6), the second scraping mechanism (6) comprising a gear ring (601), the gear ring (601) being slidably provided in the slide groove (102) via an annular sliding block (602) on a circumferential surface, a scraper (603) being installed on one side of the bottom of the gear ring (601), and the scraper (603) is in contact with the surface of the inner cylinder (2), the scraper (603) is limited in a limiting groove (405), and the gear ring (601) is meshed with a driven gear (504).

6. A natural gas heating heat exchange device according to claim 1, characterized in that: A natural gas pipe (7), an air pipe (8) and a slag discharge pipe (9) are arranged side by side at the bottom of the outer cylinder (1), and are connected to the inner cylinder (2); a water inlet pipe (13) and a water outlet pipe (14) are symmetrically arranged on one side of the outer cylinder (1), and the water inlet pipe (13) and the water outlet pipe (14) are connected to the water cavity (101).

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