Gas-fired boiler exhaust condenser

Abstract

The utility model relates to the technical field of boiler condensers, and particularly discloses a gas-fired boiler exhaust condenser which comprises a shell, a smoke inlet and a smoke outlet are formed in the side face of the shell respectively, tube plates are welded in two end openings of the shell, a plurality of heat exchange tubes are arranged in the two tube plates in a penetrating mode, and the heat exchange tubes are connected with the smoke inlet and the smoke outlet. A hollow auger blade matched with the heat exchange pipe in size movably penetrates through the heat exchange pipe in the axial direction of the heat exchange pipe, a connecting cylinder and an end socket are detachably connected to two end openings of the shell respectively, a medium inlet and a medium outlet are formed in the top of the connecting cylinder and the top of the end socket respectively, and a movable plate is slidably installed in the connecting cylinder in the axial direction of the heat exchange pipe; and a plurality of hollow auger blades are welded to the movable plate, a sealing plate is detachably connected to the end opening, away from the shell, of the connecting cylinder, a screw rod is in threaded connection with the interior of the sealing plate, the screw rod is rotationally connected to the movable plate, and the condenser can clean the inner wall of the heat exchange pipe under the condition that the condenser is not stopped.

Description

TECHNICAL FIELD

[0001] The utility model relates to a boiler condenser technical field especially relates to a gas-fired boiler exhaust condenser. BACKGROUND

[0002] The high-temperature flue gas generated by the gas-fired boiler needs to pass through the heat exchanger after the condenser to be discharged, and the inner wall of the heat exchange tube will deposit a large amount of scale after long-term use of the condenser, if the scale is not cleaned, it will cause the condenser to be blocked, and the heat exchange effect of the condenser is greatly reduced. At present, high-pressure water guns are generally used to clean the scale on the inner wall of the heat exchange tube, but the cleaning effect of the high-pressure water gun on the heat exchange tube with a relatively long length is not ideal. For the heat exchange tube with a relatively long length, a disc is generally welded at one end of a steel rod, the disc is inserted into the heat exchange tube from one end and poked out from the other end, so as to clean the inner wall of the heat exchange tube, but the efficiency of this method is very low, and the equipment downtime is long. Therefore, a condenser convenient to clean is provided. SUMMARY

[0003] To solve the problems mentioned in the background art, the purpose of the utility model is to provide a gas-fired boiler exhaust condenser.

[0004] In order to achieve the above-mentioned target, the technical scheme of the utility model is as follows:

[0005] A gas-fired boiler exhaust condenser, comprising a shell, the shell is cylindrical and horizontally arranged, a flue gas inlet and a flue gas outlet are respectively arranged on the side surface of the shell, a tube plate is welded in each port of the shell, a plurality of heat exchange tubes are arranged in the two tube plates, the heat exchange tubes are welded with the tube plates, the plurality of heat exchange tubes are arranged between the flue gas inlet and the flue gas outlet, a hollow dragon blade matching in size is movably arranged in the heat exchange tube along the axial direction of the heat exchange tube, both ends of the hollow dragon blade extend to the outside of the heat exchange tube, a connecting cylinder and a head are respectively detachably connected to the two ports of the shell, a medium inlet and a medium outlet are respectively arranged on the top of the connecting cylinder and the head, a moving plate is slidably arranged in the connecting cylinder along the axial direction of the heat exchange tube, the plurality of hollow dragon blades are welded on the moving plate, a sealing plate is detachably connected to the port of the shell away from the shell, a screw rod is threadedly connected in the sealing plate, and the screw rod is rotatably connected to the moving plate.

[0006] Further, a cleaning port is arranged at the bottom of the side surface of the shell, and a valve is arranged on the cleaning port.

[0007] Further, a threaded sleeve is welded on the sealing plate, the screw rod is threadedly connected in the threaded sleeve, and the screw rod is sealingly connected with the threaded sleeve.

[0008] The utility model discloses beneficial effect is: through the screw rod drive mobile board moves along the axial movement of heat exchange pipe, can drive hollow dragonfly blade to scrape the inner wall of heat exchange pipe to avoid the inner wall of heat exchange pipe scale formation, can clean the inner wall of heat exchange pipe at any time under the condition of not stopping, effectively improve work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0009] Fig. 1 It is the perspective view of the utility model embodiment;

[0010] Fig. 2 It is the sectional view of the utility model embodiment;

[0011] Fig. 3 It is the assembly drawing of heat exchange pipe and hollow dragonfly blade in the utility model embodiment.

[0012] The number of attached drawings is explained: 1, shell, 11, flue gas import, 12, flue gas export, 13, cleaning mouth, 14, valve, 2, tube plate, 3, heat exchange pipe, 4, hollow dragonfly blade, 5, end cover, 51, medium export, 6, connecting cylinder, 61, medium import, 7, mobile board, 8, sealing plate, 9, screw rod, 10, threaded sleeve. DETAILED DESCRIPTION

[0013] The technical scheme in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the person skilled in the art belong to the protection scope of the utility model.

[0014] As Figs. 1-3 Shown, a kind of gas boiler exhaust condenser, including shell 1, shell 1 is square tube shape and horizontally arranged, flue gas import 11 and flue gas export 12 are respectively arranged on the left and right side of shell 1, and the two ports of shell 1 are welded with tube plate 2, and several heat exchange pipes 3 are arranged in the two tube plates 2, the heat exchange pipe 3 is welded with tube plate 2, and the hollow dragonfly blade 4 of size matching is movably arranged in the heat exchange pipe 3 along the axial direction of itself, the two ends of hollow dragonfly blade 4 are extended to the outside of heat exchange pipe 3, and the end of the two ports of shell 1 is connected with end cover 5 and connecting cylinder 6 by flange, bolt assembly, respectively, the top of connecting cylinder 6 and end cover 5 is respectively provided with medium import 61 and medium export 51, and connecting cylinder 6 is square tube, and mobile board 7 is slidably installed in connecting cylinder 6 along the axial direction of heat exchange pipe 3, the several hollow dragonfly blades 4 are welded on mobile board 7, the port of connecting cylinder 6 away from shell 1 is connected with sealing plate 8 by flange, bolt assembly, and screw rod 9 is arranged in sealing plate 8, threaded sleeve 10 is welded on sealing plate 8, and screw rod 9 is threadedly connected in threaded sleeve 10, screw rod 9 is sealingly connected with threaded sleeve 10, and the end of screw rod 9 is rotatably installed on mobile board 7.

[0015] In actual application, the rotating screw rod 9 can drive the moving plate 7 to move along the axial direction of the heat exchange pipe 3, can drive the hollow dragon blade 4 to scrape the inner wall of the heat exchange pipe 3, thereby avoiding the inner wall of the heat exchange pipe 3 from being scaled, can clean the inner wall of the heat exchange pipe 3 at any time without stopping, and effectively improves the working efficiency.

[0016] In the embodiment, the bottom of the side of the shell 1 is provided with a cleaning port 13, the valve 14 is installed on the cleaning port 13, the cleaning port 13 is arranged, and the smoke dust particles on the outer wall of the heat exchange pipe 3 are conveniently cleaned.

[0017] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A gas-fired boiler exhaust condenser comprising a shell (1) which is cylindrical and horizontally arranged, a flue gas inlet (11) and a flue gas outlet (12) are arranged on the side of the shell (1) respectively, a tube sheet (2) is welded in each of the two ports of the shell (1), a plurality of heat exchange tubes (3) are arranged in the two tube sheets (2), the heat exchange tubes (3) are welded with the tube sheets (2), and the plurality of heat exchange tubes (3) are arranged between the flue gas inlet (11) and the flue gas outlet (12), characterized in that, The hollow dragon blade (4) is movably arranged in the heat exchange pipe (3) along the self axial direction, both ends of the hollow dragon blade (4) extend to the outside of the heat exchange pipe (3), the two ports of the shell (1) are respectively detachably connected with the connecting cylinder (6) and the end cover (5), the top of the connecting cylinder (6) and the end cover (5) is respectively provided with a medium inlet (61) and a medium outlet (51), the moving plate (7) is slidably arranged in the connecting cylinder (6) along the axial direction of the heat exchange pipe (3), the hollow dragon blade (4) is welded on the moving plate (7), the connecting cylinder (6) is detachably connected with the sealing plate (8) away from the port of the shell (1), the screw rod (9) is threadedly connected in the sealing plate (8), and the screw rod (9) is rotatably connected with the moving plate (7).

2. A gas boiler exhaust condenser according to claim 1, characterized in that, The bottom of the side of the shell (1) is provided with a cleaning port (13), and the valve (14) is arranged on the cleaning port.

3. A gas boiler exhaust condenser according to claim 1, characterized in that, The sealing plate (8) is welded with the threaded sleeve (10), the screw rod (9) is threadedly connected in the threaded sleeve (10), and the screw rod (9) is sealingly connected with the threaded sleeve (10).

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