Pipe frame type waste heat boiler

Abstract

The utility model discloses a pipe frame type waste heat boiler, and relates to the field of waste heat utilization equipment. A pipe frame type waste heat boiler comprises a water storage tank which is fixedly communicated with a water injection pipe, and further comprises a heat conduction cylinder which is arranged in the water storage tank, and the two ends of the heat conduction cylinder penetrate through the upper end and the lower end of the water storage tank respectively; the connecting shaft is fixedly connected in the heat conduction cylinder; according to the utility model, when waste gas passes through the heat conduction cylinder, the time for the waste gas to pass through the heat conduction cylinder can be prolonged under the guidance of the spiral blade, so that the heat in the waste gas can be better recycled, and the heating effect on water is improved; through the arrangement of the heat conduction pipe, the time that waste gas passes through the heat conduction pipe can be prolonged, heat in the waste gas can be fully recycled, energy waste is reduced, and the water heating effect is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of waste heat utilization equipment, specifically, it relates to a tube rack type waste heat boiler. Background Technology

[0002] Industrial production processes generate a large amount of waste heat resources, such as high-temperature flue gas and waste heat steam. If these waste heat resources cannot be effectively utilized, it will not only waste energy but also have a negative impact on the environment. Therefore, waste heat utilization equipment is currently used to utilize waste heat resources.

[0003] For example, patent application number 202222142332.6, entitled "A Waste Heat Boiler System," discloses a waste heat boiler system designed to solve the problem of incomplete dust removal in current waste heat boilers, which affects heat exchange efficiency and pollutes the environment. The waste heat boiler system includes a furnace body containing several heat exchange tube assemblies. Each heat exchange tube assembly is composed of several heat exchange tubes. A dust removal device is slidably fitted onto each heat exchange tube assembly. Adjacent dust removal devices are connected by a connecting rod. Each dust removal device includes a fixed frame containing several symmetrically arranged arc-shaped scrapers. The scrapers abut against the outer wall of the outer heat exchange tubes. A support rod connects two opposite scrapers, and a connecting rod connects the support rods. Symmetrically arranged brushes are mounted on the connecting rods, abutting against the outer wall of the inner heat exchange tubes. Several hydraulic cylinders are located at the lower end of the furnace body, with their extension and retraction ends passing through the outer wall of the furnace body and connected to the connecting rods. This utility model is reasonably designed, easy to install, and can clean every heat exchange tube, resulting in more thorough cleaning and improved heat exchange efficiency.

[0004] The above-mentioned patent has the following defects when in use: when heating the water inside the hot water pipe by exchanging heat between the waste gas and the hot water pipe, the heat in the waste gas may not be fully recovered and utilized due to the short contact time between the waste gas and the hot water pipe in the furnace, which reduces the utilization rate of the heat in the waste gas. Therefore, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a tube rack type waste heat boiler that can overcome or at least partially solve the above problems.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A tube-frame waste heat boiler includes a water storage tank with a water injection pipe fixedly connected to it. It also includes: a heat-conducting cylinder disposed inside the water storage tank, with its two ends penetrating the upper and lower ends of the water storage tank respectively; a connecting shaft fixedly connected to the heat-conducting cylinder, with helical blades fixedly connected to the connecting shaft, the helical blades fitting against the inner wall of the heat-conducting cylinder, and a hollow cavity formed at the axis of the connecting shaft; a filter box fixedly connected to the water storage tank, with a first gas supply pipe and a second gas supply pipe fixedly connected to the filter box, the end of the first gas supply pipe away from the filter box connected to the heat-conducting cylinder; and multiple heat-conducting pipes fixedly connected at equal intervals around the circumference of the heat-conducting cylinder, the ends of the heat-conducting pipes away from the heat-conducting cylinder connected to the hollow cavity, the heat-conducting pipes being arranged in an arc shape.

[0008] In order to filter particulate impurities carried in flue gas, preferably, a filter screen is also included, and multiple filter screens are provided, each of which is detachably connected to a filter box.

[0009] In order to ensure that the water in the water storage tank is heated evenly, preferably, the heat-conducting cylinder is rotatably connected to the water storage tank, a motor is fixedly installed on the water storage tank, a gear one is fixedly connected to the output end of the motor, a gear two is fixedly connected to the heat-conducting cylinder, the gear two meshes with the gear one, and the end of the air supply pipe away from the filter box is connected to the heat-conducting cylinder through a rotary joint, the rotary joint being provided on the heat-conducting cylinder.

[0010] To facilitate the discharge of heated water from the water storage tank, preferably, a drain pipe is fixedly connected to the bottom of the water storage tank, and a solenoid valve is installed on the drain pipe.

[0011] To maintain a constant pressure inside the water storage tank, preferably, a pressure relief pipe is fixedly connected to the water storage tank, and a pressure relief valve is installed on the pressure relief pipe.

[0012] To facilitate the disassembly and cleaning of the filter screens, multiple filter screens are further inserted into the filter box.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0014] In this invention, when the exhaust gas passes through the heat-conducting cylinder, the time it spends in the cylinder is extended under the guidance of the spiral blades, thereby allowing the heat in the exhaust gas to be better recovered and utilized, improving the heating effect on the water. Furthermore, when the exhaust gas passes through the heat-conducting pipe, the bow-shaped arrangement of the heat-conducting pipe extends the time it spends in the pipe, allowing the heat in the exhaust gas to be more fully recovered and utilized, thus reducing energy waste and effectively improving the heating effect on the water. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the internal structure of the water storage tank and filter box of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the heat-conducting cylinder of this utility model;

[0017] Figure 3 This is the utility model Figure 1 Enlarged view of part A in the middle.

[0018] In the diagram: 1. Water storage tank; 101. Water injection pipe; 102. Drain pipe; 103. Pressure relief pipe; 2. Heat conduction cylinder; 201. Connecting shaft; 202. Spiral blade; 203. Gas supply pipe one; 204. Filter box; 205. Filter screen; 206. Gas supply pipe two; 3. Heat conduction pipe; 301. Hollow cavity; 4. Motor; 401. Gear one; 402. Gear two; 403. Rotary joint. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0020] Example 1:

[0021] Reference Figure 1 , Figure 2 , Figure 3 A tube-frame waste heat boiler includes a water storage tank 1, with a water injection pipe 101 fixedly connected to the water storage tank 1. It also includes: a heat-conducting cylinder 2, disposed inside the water storage tank 1, with both ends of the heat-conducting cylinder 2 penetrating the upper and lower ends of the water storage tank 1 respectively; a connecting shaft 201, fixedly connected to the heat-conducting cylinder 2, with a spiral blade 202 fixedly connected to the connecting shaft 201, the spiral blade 202 fitting against the inner wall of the heat-conducting cylinder 2, and a hollow cavity 301 formed at the axis of the connecting shaft 201; a filter box 204, fixedly connected to the water storage tank 1, with a first gas supply pipe 203 and a second gas supply pipe 206 fixedly connected to the filter box 204, the end of the first gas supply pipe 203 away from the filter box 204 connected to the heat-conducting cylinder 2; and multiple heat-conducting pipes 3 fixedly connected at equal intervals around the circumference of the heat-conducting cylinder 2, the end of each heat-conducting pipe 3 away from the heat-conducting cylinder 2 connected to the hollow cavity 301, the heat-conducting pipes 3 arranged in an arc shape.

[0022] Multiple filters 205 are provided, and all filters 205 are detached and connected inside the filter box 204.

[0023] In use, the exhaust gas generated during boiler operation is introduced into the filter box 204 through the second gas transmission pipe 206. At this time, the exhaust gas comes into contact with the filter screen 205 in the filter box 204, thereby filtering out particulate impurities carried in the exhaust gas. Then, the filtered exhaust gas is transported into the heat conduction cylinder 2 through the first gas transmission pipe 203. Subsequently, the exhaust gas is discharged into the hollow cavity 301 through the heat conduction pipe 3, and finally discharged to the outside through the hollow cavity 301. Thus, when the exhaust gas passes through the heat conduction cylinder 2 and the heat conduction pipe 3, the water in the water storage tank 1 can be heated through heat conduction.

[0024] Meanwhile, when the exhaust gas passes through the heat-conducting cylinder 2, the time it spends in the heat-conducting cylinder 2 is extended under the guidance of the spiral blades 202, thereby allowing the heat in the exhaust gas to be better recovered and utilized, improving the heating effect on the water. At the same time, when the exhaust gas passes through the heat-conducting pipe 3, the time it spends in the heat-conducting pipe 3 is extended by the bow-shaped heat-conducting pipe 3, thereby allowing the heat in the exhaust gas to be more fully recovered and utilized, thus reducing energy waste and effectively improving the heating effect on the water.

[0025] Multiple filter screens 205 are inserted into the filter box 204;

[0026] By making the filter screen 205 detachable, it is not only easy to disassemble and clean the filter screen 205, but also easy to replace it when the filter screen 205 is damaged.

[0027] It should be noted that one-way valves are installed on gas pipe 206, gas pipe 1 203, and heat pipe 3.

[0028] Example 2:

[0029] Reference Figure 1 , Figure 2 A tube-frame waste heat boiler is basically the same as in Embodiment 1, but further, the heat conduction cylinder 2 is rotatably connected to the water storage tank 1, the water storage tank 1 is fixedly installed with a motor 4, the output end of the motor 4 is fixedly connected with a gear 401, the heat conduction cylinder 2 is fixedly connected with a gear 402, the gear 402 meshes with the gear 401, and the end of the gas transmission pipe 203 away from the filter box 204 is connected to the heat conduction cylinder 2 through a rotary joint 403, the rotary joint 403 is set on the heat conduction cylinder 2.

[0030] Based on Example 1, when the heat of flue gas is used to heat the water added to the water storage tank 1, the motor 4 is started. The motor 4 drives the heat conduction cylinder 2 to rotate through the meshing connection of gear 1 401 and gear 2 402. The heat conduction cylinder 2 drives the heat conduction pipe 3 to rotate. At the same time, the rotating heat conduction pipe 3 can stir the water in the water storage tank 1, thereby making the water evenly heated, which is beneficial to control the water temperature.

[0031] Example 3:

[0032] Reference Figure 1 A tube-frame waste heat boiler is basically the same as in Embodiment 1, but further, a pressure relief pipe 103 is fixedly connected to the water storage tank 1, and a pressure relief valve is installed on the pressure relief pipe 103.

[0033] During the heating process, when the pressure inside the water storage tank 1 exceeds the pressure relief value set by the pressure relief valve on the pressure relief pipe 103, the pressure relief valve automatically opens to release pressure, thereby keeping the pressure inside the water storage tank 1 constant and preventing excessive pressure inside the water storage tank 1 from causing safety hazards.

[0034] Example 4:

[0035] Reference Figure 1 A tube-frame waste heat boiler is basically the same as in Embodiment 1, but further, the bottom of the water storage tank 1 is fixedly connected to a drain pipe 102, and a solenoid valve is installed on the drain pipe 102; when the water inside the water storage tank 1 is heated to a certain temperature and needs to be discharged from the water storage tank 1, the hot water can be discharged from the water storage tank 1 through the drain pipe 102 for use by opening the solenoid valve on the drain pipe 102.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model.

Claims

1. A tube-frame type waste heat boiler, comprising a water storage tank (1), wherein a water injection pipe (101) is fixedly connected to the water storage tank (1), characterized in that, Also includes: A heat-conducting cylinder (2) is installed inside the water storage tank (1). The heat-conducting cylinder (2) has two ends that pass through the upper and lower ends of the water storage tank (1), respectively. The connecting shaft (201) is fixedly connected in the heat-conducting cylinder (2). Among them, a spiral blade (202) is fixedly connected to the connecting shaft (201), the spiral blade (202) is in contact with the inner wall of the heat-conducting cylinder (2), and a hollow cavity (301) is opened in the axis of the connecting shaft (201); The filter box (204) is fixedly connected to the water storage tank (1). Among them, the filter box (204) is fixedly connected to the first gas supply pipe (203) and the second gas supply pipe (206). The end of the first gas supply pipe (203) away from the filter box (204) is connected to the heat-conducting cylinder (2). Multiple heat-conducting pipes (3) are fixedly connected to the heat-conducting cylinder (2) at equal intervals around its circumference. The end of the heat-conducting pipe (3) away from the heat-conducting cylinder (2) is connected to the hollow cavity (301). The heat-conducting pipes (3) are arranged in an arc shape.

2. A tube-frame waste heat boiler according to claim 1, characterized in that, It also includes a filter screen (205), of which multiple filter screens (205) are provided, and multiple filter screens (205) are detachably connected to the filter box (204).

3. A tube-frame waste heat boiler according to claim 1, characterized in that, The heat-conducting cylinder (2) is rotatably connected to the water storage tank (1). A motor (4) is fixedly installed on the water storage tank (1). A gear (401) is fixedly connected to the output end of the motor (4). A gear (402) is fixedly connected to the heat-conducting cylinder (2). The gear (402) meshes with the gear (401). The end of the gas supply pipe (203) away from the filter box (204) is connected to the heat-conducting cylinder (2) through a rotary joint (403). The rotary joint (403) is located on the heat-conducting cylinder (2).

4. A tube-frame waste heat boiler according to claim 1, characterized in that, The bottom of the water storage tank (1) is fixedly connected to a drain pipe (102), and a solenoid valve is installed on the drain pipe (102).

5. A tube-frame waste heat boiler according to claim 1, characterized in that, The water storage tank (1) is fixedly connected to a pressure relief pipe (103), and a pressure relief valve is provided on the pressure relief pipe (103).

6. A tube-frame waste heat boiler according to claim 2, characterized in that, Multiple of the filter screens (205) are inserted into the filter box (204).

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