Dual-fuel heat supply equipment

Abstract

The utility model relates to the technical field of dual-fuel heat supply boilers, in particular to dual-fuel heat supply equipment which comprises a boiler body, heat supply connectors are connected to the left side of the boiler body in a vertically symmetrical mode, a double-end heat supply pipe is arranged on the outer sides of the heat supply connectors, and one-way valves are installed on two sets of pipelines of the double-end heat supply pipe. The left end of the double-end heat supply pipe is connected with a double-fuel gas inlet pipe, the opposite ends of the heat supply connector and the double-end heat supply pipe are fixedly sleeved with inner connection clamping sleeves, and the outer sides of the inner connection clamping sleeves are wrapped with sealing rings. And when one group is replaced, the normal operation of the other group is ensured, so that the filter cartridges are replaced without stopping equipment, and the operation efficiency of the boiler is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dual-fuel heating boilers, in particular to dual-fuel heating equipment. Background Art

[0002] Dual-fuel heating is a system that uses two different fuels for heating, usually natural gas mixed with various industrial waste gases as fuel for heating. This heating method combines the advantages of both fuels and can flexibly adjust fuel usage in different situations to achieve higher efficiency and better environmental performance. Dual-fuel heating systems are usually used in large facilities that require stable heating, such as industrial boilers, heating stations, etc., to meet large-scale heating needs.

[0003] However, in actual use, dual fuel may not burn completely, resulting in more impurities in the transportation process, so it needs to be filtered before heating. However, the existing filter cartridges are usually only set in one group. When replacing, the equipment needs to be paused and restarted after the replacement is completed. This not only wastes time but also is not convenient and fast enough during replacement, delaying the operation time of the equipment.

[0004] Therefore, it is particularly important to design a dual-fuel heating device to change the above-mentioned technical defects and improve overall practicality. Utility Model Content

[0005] The purpose of the utility model is to provide a dual-fuel heating device to solve the problems raised in the above background technology.

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

[0007] A dual-fuel heating device comprises a boiler body, a heating joint is symmetrically connected to the left side of the boiler body, a double-headed heating pipe is arranged on the outside of the heating joint, and two groups of pipes of the double-headed heating pipe are installed with a one-way valve, the left end of the double-headed heating pipe is connected to the dual-fuel air intake pipe, the heating joint and the double-headed heating pipe are fixedly sleeved with an internal clamping sleeve at the ends facing each other, a sealing ring is wrapped on the outside of the internal clamping sleeve, and limited slots are provided inwardly on the upper and lower sides of the internal clamping sleeve, a filter cartridge is arranged between the heating joint and the double-headed heating pipe, the left and right ends of the filter cartridge are connected with an external clamping sleeve, the top and bottom of the outer side of the external clamping sleeve are provided with an internal threaded sleeve, the internal thread of the internal threaded sleeve is connected with a locking rod that is plugged and pulled out and engaged with the limited slot, the middle section of the filter cartridge is connected with a telescopic ring, and filter screens are installed inside the filter cartridge and on the left and right sides of the telescopic ring.

[0008] As a preferred solution of the utility model, through grooves corresponding to the positions of the limiting slots are symmetrically opened in the inner part of the sealing ring.

[0009] As a preferred solution of the present utility model, the external structure size of the internal connection ferrule is adapted to the internal structure size of the external connection ferrule, and the connection method between the internal connection ferrule and the external connection ferrule is a plug-and-play connection.

[0010] As a preferred solution of the present utility model, the filter cartridge is designed with a separable structure between the heating joint and the double-headed heating pipe respectively.

[0011] As a preferred solution of the present utility model, a controller is provided on the outer side of the boiler body, wherein the controller is connected to the one-way valve through a wire, and the connection method is an electrical connection.

[0012] As a preferred solution of the present utility model, the telescopic ring adopts a sealing rubber telescopic ring with a gooseneck tube structure.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the present utility model, by providing a dual-fuel heating device, two groups of filter cartridges are provided, and the two groups of filter cartridges can be used alternately. When one group is replaced, the normal operation of the other group is ensured, so that the filter cartridge can be replaced without stopping the device, thereby improving the operation efficiency of the boiler.

[0015] In the present utility model, when replacing and installing the filter cartridge, by respectively clamping the external connection ferrules at both ends of the filter cartridge on the internal connection ferrules at the ports of the heating joint and the double-headed heating pipe, and ensuring the tightness of the sealing ring, then rotating the locking plug in the internal thread sleeve to make it stuck in the limit slot for fixation. The telescopic ring can change the length of the filter cartridge to facilitate the overall installation and disassembly. The whole process is convenient to operate and saves time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the overall structure of the present utility model;

[0017] Figure 2 It is the partial structure diagram of the filter cartridge of the present utility model;

[0018] Figure 3 It is the enlarged schematic diagram of the structure A of the present utility model.

[0019] In the figure: 1. Boiler body; 2. Heating joint; 3. Double-headed heating pipe; 4. One-way valve; 5. Dual-fuel inlet pipe; 6. Internal connection ferrule; 601. Sealing ring; 602. Limit slot; 7. Filter cartridge; 701. External connection ferrule; 702. Internal thread sleeve; 703. Locking plug; 704. Telescopic ring; 705. Filter screen. DETAILED DESCRIPTION OF THE INVENTION

[0020] The following will describe in clear and complete detail the technical solutions in the embodiments of the present utility model in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0021] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant attached drawings. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixedly installed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0024] For the embodiments, please refer to Figures 1-3 , the present utility model provides a technical solution:

[0025] A dual-fuel heating device includes a boiler body 1. Heating connectors 2 are symmetrically connected to the upper and lower sides on the left side of the boiler body 1. A double-headed heating pipe 3 is arranged outside the heating connectors 2. Check valves 4 are installed on both groups of pipes of the double-headed heating pipe 3. The left end of the double-headed heating pipe 3 is connected to a dual-fuel intake pipe 5. Inner connecting sleeves 6 are fixedly sleeved on the ends of the heating connectors 2 and the double-headed heating pipe 3 that face each other. A sealing ring 601 is wrapped outside the inner connecting sleeve 6 to improve the connection sealing performance. Limiting slots 602 are inwardly opened on the upper and lower sides of the inner connecting sleeve 6. A filter cartridge 7 is arranged between the heating connectors 2 and the double-headed heating pipe 3;

[0026] Inside the sealing ring 601, through grooves corresponding to the positions of the limiting slots 602 are symmetrically arranged up and down. The filter cylinder 7 is designed with a separable structure between the heating joint 2 and the double-headed heating pipe 3 respectively. A controller is arranged on the outer side of the boiler body 1, and the controller is electrically connected to the one-way valve 4 through a wire.

[0027] In this embodiment, please refer to Figure 2 and Figure 3 , external clamping sleeves 701 are connected to both the left and right ends of the filter cylinder 7. Inner threaded sleeves 702 are arranged at the top and bottom of the outer side of the external clamping sleeve 701. A locking plug rod 703 that is inserted and clamped with the limiting slot 602 is threadedly connected inside the inner threaded sleeve 702. Rotate the locking plug rod 703 in the inner threaded sleeve 702 to make it stuck in the limiting slot 602 for fixation. The middle section of the filter cylinder 7 is connected with an expansion ring 704, which can change the length of the filter cylinder 7 to facilitate the overall installation and disassembly. Inside the filter cylinder 7 and on both sides of the expansion ring 704, filter meshes 705 are installed for filtering the gas;

[0028] The external structure size of the internal clamping sleeve 6 is adapted to the internal structure size of the external clamping sleeve 701. The connection method between the internal clamping sleeve 6 and the external clamping sleeve 701 is plug-in connection. The expansion ring 704 is a sealing rubber expansion ring with a gooseneck tube structure.

[0029] The working process of the present utility model: When in use, the gas pipe is connected to the dual-fuel inlet pipe 5, and then one group of one-way valves 4 is opened. The gas enters the filter cylinder 7 through the double-headed heating pipe 3, is filtered through the filter mesh 705, and then enters the boiler body 1 through the heating joint 2. When replacing and installing the filter 7, close the corresponding one-way valve 4, open the other group of one-way valves 4 to make the gas continue to be supplied through another pipeline, then respectively clamp the external clamping sleeves 701 at both ends of the filter cylinder 7 on the internal clamping sleeves at the ports of the heating joint 2 and the double-headed heating pipe 3, and ensure the tightness of the sealing ring 601. Then rotate the locking plug rod 703 in the inner threaded sleeve 702 to make it stuck in the limiting slot 602 for fixation. The expansion ring 704 can change the length of the filter cylinder 7 to facilitate the overall installation and disassembly. The whole process is convenient to operate and saves time. The two sets of filter cylinders 7 provided can be used alternately. When replacing one group, ensure the normal operation of the other group, so as to replace the filter cylinder without stopping the equipment, improving the operation efficiency of the boiler.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A dual-fuel heating device, comprising a boiler body (1), characterized in that: On the left side of the boiler body (1), heating connectors (2) are symmetrically connected up and down. A double-headed heating pipe (3) is arranged outside the heating connector (2). Check valves (4) are installed on both groups of pipes of the double-headed heating pipe (3). The left end of the double-headed heating pipe (3) is connected to a dual-fuel inlet pipe (5). Inner connecting ferrules (6) are fixedly sleeved at the ends of the heating connector (2) and the double-headed heating pipe (3) facing each other. A sealing ring (601) is wrapped outside the inner connecting ferrule (6). Limiting slots (602) are inwardly formed on both the upper and lower sides of the inner connecting ferrule (6). A filter cartridge (7) is arranged between the heating connector (2) and the double-headed heating pipe (3). Outer connecting ferrules (701) are connected to both the left and right ends of the filter cartridge (7). Inner threaded sleeves (702) are arranged at the top and bottom of the outside of the outer connecting ferrule (701). A locking plug (703) that is inserted and clamped with the limiting slot (602) is threadedly connected inside the inner threaded sleeve (702). A telescopic ring (704) is connected to the middle section of the filter cartridge (7). Filter meshes (705) are installed on both the left and right sides of the telescopic ring (704) inside the filter cartridge (7).

2. The dual-fuel heating device according to claim 1, wherein: Through grooves corresponding to the positions of the limiting slots (602) are symmetrically formed up and down inside the sealing ring (601).

3. A dual-fuel heating device according to claim 1, characterized in that: The external structure size of the inner connecting ferrule (6) is adapted to the internal structure size of the outer connecting ferrule (701), and the connection method between the inner connecting ferrule (6) and the outer connecting ferrule (701) is plug-in connection.

4. A dual-fuel heating device according to claim 1, characterized in that: The filter cartridge (7) and the heating connector (2), the double-headed heating pipe (3) are designed with a separable structure respectively.

5. A dual-fuel heating device according to claim 1, characterized in that: A controller is arranged outside the boiler body (1). The controller is electrically connected to the check valve (4) through a wire.

6. A dual-fuel heating device according to claim 1, characterized in that: The telescopic ring (704) is a sealing rubber telescopic ring with a gooseneck tube structure.

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