Coal gas thermal energy recovery device

Abstract

The utility model discloses a coal gas heating power heat energy recovery device which comprises a gas inlet pipe, a water inlet main pipe, a water drainage main pipe and an exhaust pipe are sequentially arranged on the lower side of the gas inlet pipe, and a primary heat energy recovery structure is installed on the outer upper side of the gas inlet pipe and communicated with the water inlet main pipe. A plurality of main heat energy recovery structures are installed between the gas inlet pipe and the exhaust pipe, the water inlet main pipe is connected with the water inlet ends of the main heat energy recovery structures, and the water drainage main pipe is connected with the water outlet ends of the main heat energy recovery structures. The heating power gas exchanges heat with liquid in the tank body through the spiral pipe, heat energy recovery is achieved, a primary heat energy recovery structure is arranged on a flowing path of the heating power gas, some heat energy can be recovered to a certain degree, heat energy loss is reduced as much as possible, and the environment-friendly and energy-saving degree is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gas, in particular to a coal gas thermal energy recovery device. Background Art

[0002] Coal gas is a gas containing combustible components obtained by processing coal as raw material. According to the processing method, coal gas properties and uses, it can be divided into: water gas, semi-water gas, and air gas (or producer gas) obtained by coal gasification. These gases have low calorific value, so they are collectively called low calorific value coal gas; the gas obtained by coking in coal dry distillation is called coke oven gas. It is a medium calorific value coal gas and can be used as a civilian fuel in cities. Carbon monoxide and hydrogen in coal gas are important chemical raw materials.

[0003] In the process of using coal gas, hot steam and other gases with certain thermal energy are sometimes generated. Currently, there is a lack of a related device for recovering heat energy, resulting in the effect of coal gas heat recovery being not very ideal. If the coal gas heat can be recycled and utilized to a certain extent, it will not only be beneficial to environmental protection, but also have a certain emission reduction effect. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a gas thermal energy recovery device, which solves the problem that the existing gas thermal energy utilization is insufficient and is not conducive to people's energy-saving and environmentally friendly life.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a coal gas thermal energy recovery device, comprising an air inlet pipe, a water inlet main pipe, a drainage main pipe and an exhaust pipe are arranged in sequence on the lower side of the air inlet pipe, a primary heat energy recovery structure is installed on the outer upper side of the air inlet pipe, the primary heat energy recovery structure is connected to the water inlet main pipe, a plurality of main heat energy recovery structures are installed between the air inlet pipe and the exhaust pipe, the air inlet pipe is connected to the air inlet end of the main heat energy recovery structure, the exhaust pipe is connected to the air outlet end of the main heat energy recovery structure, the water inlet main pipe is connected to the water inlet end of the main heat energy recovery structure, and the drainage main pipe is connected to the water outlet end of the main heat energy recovery structure.

[0006] Preferably, the primary heat energy recovery structure includes a first conduit, which is arranged at the rear side of the intake pipe, and a second conduit is installed at the front side of the intake pipe, and the second conduit is connected to the water inlet main pipe. A plurality of heat conduction pipes are inserted between the first conduit and the second conduit, and the heat conduction pipes are arc-shaped and fit the outer wall of the intake pipe.

[0007] Preferably, the main heat energy recovery structure includes an outer tank body, which is arranged between the air inlet pipe and the exhaust pipe, an inner tank body is installed in the outer tank body, a spiral tube is installed in the inner tank body, the air inlet end of the spiral tube sequentially passes through the inner tank body and the outer tank body to be connected to the air inlet pipe, the air outlet end of the spiral tube sequentially passes through the inner tank body and the outer tank body to be connected to the exhaust pipe, an inlet pipe and a drain pipe connected to the inner tank body are installed on the outside of the outer tank body, the water inlet pipe is connected to the water inlet main pipe, and the drain pipe is connected to the drain main pipe.

[0008] Preferably, a first solenoid valve is installed between the water inlet pipe and the water inlet main pipe, a first solenoid valve is also installed between the drain pipe and the drain main pipe, a second solenoid valve is installed between the spiral tube and the air inlet pipe, a second solenoid valve is also installed between the air outlet end of the spiral tube and the exhaust pipe, and a plurality of temperature sensors are provided in the inner tank body.

[0009] Preferably, a water filling port is inserted at the top of the outer tank body, and the water filling port is connected to the inner tank body.

[0010] Beneficial Effects

[0011] The utility model provides a gas thermal energy recovery device. It has the following beneficial effects: the gas thermal energy recovery device, through the principle of heat exchange, allows the thermal gas to exchange heat with the liquid in the tank through the spiral tube to achieve heat recovery, and secondly, a primary heat recovery structure is set on the path of the thermal gas flow, which can recover some heat energy to a certain extent, reduce heat energy loss as much as possible, and improve the degree of environmental protection and energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a schematic diagram of the right side cross-sectional structure of the air intake pipe of the present utility model.

[0014] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model.

[0015] In the figure: 1. air inlet pipe; 2. water inlet main pipe; 3. drainage main pipe; 4. exhaust pipe; 5. first conduit; 6. second conduit; 7. heat transfer pipe; 8. outer tank body; 9. inner tank body; 10. spiral pipe; 11. water inlet pipe; 12. drainage pipe; 13. first solenoid valve; 14. second solenoid valve; 15. water supply port. DETAILED DESCRIPTION

[0016] 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 in 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.

[0017] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0018] See also Figure 1-3 The utility model provides a technical solution: a gas thermal energy recovery device, comprising an air intake pipe 1, a water inlet pipe 2, a drainage pipe 3 and an exhaust pipe 4 are arranged in sequence on the lower side of the air intake pipe 1, a primary heat energy recovery structure is installed on the outer upper side of the air intake pipe 1, the primary heat energy recovery structure is connected with the water inlet pipe 2, a plurality of main heat energy recovery structures are installed between the air intake pipe 1 and the exhaust pipe 4, the air intake pipe 1 is connected with the air intake end of the main heat energy recovery structure, the exhaust pipe 4 is connected with the air outlet end of the main heat energy recovery structure, the water inlet pipe 2 is connected with the water inlet end of the main heat energy recovery structure, and the drainage pipe 3 is connected with the water outlet end of the main heat energy recovery structure.

[0019] Embodiment 1: The primary heat recovery structure comprises a first conduit 5, which is arranged at the rear side of the intake pipe 1, a second conduit 6 is installed at the front side of the intake pipe 1, the second conduit 6 is connected to the water inlet main pipe 2, and a plurality of heat conducting pipes 7 are inserted between the first conduit 5 and the second conduit 6, the heat conducting pipes 7 are in the shape of an arc and fit the outer wall of the intake pipe 1;

[0020] Specifically, the first conduit 5 and the second conduit 6 are arranged according to the intake pipe 1. If the intake pipe 1 is not long, it is also possible not to arrange the primary heat recovery structure.

[0021] Specifically, the main purpose of the first conduit 5 is to inlet water or introduce heat exchange liquid. One end of the water inlet is opened and the other end is closed. Water enters from the first conduit 5 and flows into the second conduit 6 along the heat conducting pipe 7. In this process, since the heat conducting pipe 7 is in contact with the exhaust pipe 4, heat exchange is performed and heat energy is absorbed to a certain extent. Then the water enters the second conduit 6. One end of the second conduit 6 is also closed, and the other end is connected to the water inlet main pipe 2. After the water enters the water inlet main pipe 2 along the second conduit 6, it enters the water inlet pipe 11 according to the opened first solenoid valve 13, and then enters the corresponding inner tank body 9.

[0022] Embodiment 2: The main heat energy recovery structure includes an outer tank body 8, which is arranged between the air inlet pipe 1 and the exhaust pipe 4. An inner tank body 9 is installed in the outer tank body 8, and a spiral tube 10 is installed in the inner tank body 9. The air inlet end of the spiral tube 10 sequentially penetrates the inner tank body 9 and the outer tank body 8 and is connected to the air inlet pipe 1, and the air outlet end of the spiral tube 10 sequentially penetrates the inner tank body 9 and the outer tank body 8 and is connected to the exhaust pipe 4. The outer side of the outer tank body 8 is inserted with a water inlet pipe 11 and a drain pipe 12 connected to the inner tank body 9, the water inlet pipe 11 is connected to the water inlet main pipe 2, and the drain pipe 12 is connected to the drain main pipe 3;

[0023] Specifically, after the water enters the water inlet main pipe 2 along the second conduit 6, it enters the water inlet pipe 11 according to the opened first solenoid valve 13, and then enters the corresponding inner tank body 9. At this time, the gas in the air inlet pipe 1 enters the spiral tube 10, and the spiral tube 10 exchanges heat with the liquid in the inner tank body 9 to complete heat energy recovery. The recovered gas is discharged along the exhaust pipe 4;

[0024] Specifically, Figure 3 As shown, a plurality of spiral tubes 10 are arranged between the air inlet pipe 1 and the exhaust pipe 4, but there is only one spiral tube 10 on each branch. A plurality of spiral tubes 10 and inner and outer tank bodies 8 can be arranged on each branch, so that the water in different inner tank bodies 9 on the same branch can produce heat recovery water of different temperatures due to heat recovery, and the water can be used for different purposes.

[0025] A first solenoid valve 13 is installed between the water inlet pipe 11 and the water inlet main pipe 2, a first solenoid valve 13 is also installed between the drain pipe 12 and the drain main pipe 3, a second solenoid valve 14 is installed between the spiral tube 10 and the air inlet pipe 1, and a second solenoid valve 14 is also installed between the air outlet end of the spiral tube 10 and the exhaust pipe 4, and a plurality of temperature sensors are arranged in the inner tank body 9;

[0026] Specifically, the opening and closing of each branch can be controlled by the first solenoid valve 13 and the second solenoid valve 14, and the degree of heat exchange can be controlled, such as controlling the temperature of the heat exchange liquid.

[0027] A water replenishment port 15 is inserted into the top of the outer tank body 8 , and the water replenishment port 15 is connected to the inner tank body 9 .

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas thermal energy recovery device, comprising an air intake pipe (1), characterized in that: A water inlet pipe (2), a drainage pipe (3) and an exhaust pipe (4) are arranged in sequence on the lower side of the air inlet pipe (1); a primary heat energy recovery structure is installed on the upper outer side of the air inlet pipe (1); the primary heat energy recovery structure is connected to the water inlet pipe (2); a plurality of main heat energy recovery structures are installed between the air inlet pipe (1) and the exhaust pipe (4); the air inlet pipe (1) is connected to the air inlet end of the main heat energy recovery structure; the exhaust pipe (4) is connected to the air outlet end of the main heat energy recovery structure; the water inlet pipe (2) is connected to the water inlet end of the main heat energy recovery structure; and the drainage pipe (3) is connected to the water outlet end of the main heat energy recovery structure.

2. A gas thermal energy recovery device according to claim 1, characterized in that The primary heat energy recovery structure comprises a first conduit (5), the first conduit (5) being arranged at the rear side of the intake pipe (1), a second conduit (6) being installed at the front side of the intake pipe (1), the second conduit (6) being connected to the water inlet main pipe (2), a plurality of heat conducting pipes (7) being inserted between the first conduit (5) and the second conduit (6), the heat conducting pipes (7) being in the shape of an arc and being in contact with the outer wall of the intake pipe (1).

3. The gas thermal energy recovery device according to claim 1, characterized in that The main heat energy recovery structure comprises an outer tank body (8), wherein the outer tank body (8) is arranged between the air inlet pipe (1) and the exhaust pipe (4), wherein an inner tank body (9) is installed in the outer tank body (8), wherein a spiral tube (10) is installed in the inner tank body (9), wherein an air inlet end of the spiral tube (10) sequentially passes through the inner tank body (9) and the outer tank body (8) and is connected to the air inlet pipe (1), wherein an air outlet end of the spiral tube (10) sequentially passes through the inner tank body (9) and the outer tank body (8) and is connected to the exhaust pipe (4), wherein an inlet pipe (11) and a drain pipe (12) connected to the inner tank body (9) are inserted on the outer side of the outer tank body (8), wherein the inlet pipe (11) is connected to the water inlet main pipe (2), and the drain pipe (12) is connected to the drain main pipe (3).

4. A gas thermal energy recovery device according to claim 3, characterized in that A first solenoid valve (13) is installed between the water inlet pipe (11) and the water inlet main pipe (2), a first solenoid valve (13) is also installed between the drain pipe (12) and the drain main pipe (3), a second solenoid valve (14) is installed between the spiral tube (10) and the air inlet pipe (1), a second solenoid valve (14) is also installed between the air outlet end of the spiral tube (10) and the exhaust pipe (4), and a plurality of temperature sensors are arranged in the inner tank body (9).

5. The gas thermal energy recovery device according to claim 3, characterized in that A water supply port (15) is inserted at the top of the outer tank body (8), and the water supply port (15) is connected to the inner tank body (9).

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