Combined synthetic furnace waste heat recovery device

Abstract

The utility model discloses a combined synthetic furnace waste heat recovery device, and particularly relates to the technical field of energy utilization, which comprises a heat exchanger, the lower end of the heat exchanger is fixedly connected with a damping mechanism, the front part of the right side of the outer cambered surface of the heat exchanger is fixedly connected with a heat source outlet pipe, and the right end of the heat source outlet pipe is fixedly connected with a separation mechanism. A heat source inlet pipe and a cold source outlet pipe are fixedly connected to the rear portion of the left side of the outer arc face of the heat exchanger, and a cold source inlet pipe is fixedly connected to the rear portion of the right side of the outer arc face of the heat exchanger. According to the combined type synthesis furnace waste heat recovery device, steam generated by heating liquid can be effectively separated from a large number of liquid drops through the arranged separation mechanism, steam-water mixtures cannot be discharged together after heat exchange of high-temperature tail gas is completed, the liquid drops cannot be accumulated or flow back near an outlet of the heat exchanger, and the waste heat recovery efficiency is improved. Therefore, the service life of the equipment is effectively prolonged.

Description

Technical Field

[0001] This utility model relates to the field of energy utilization technology, and in particular to a combined synthesis furnace waste heat recovery device. Background Technology

[0002] In modern industrial production, synthesis furnaces play a crucial role and are widely used in many industries such as chemical, metallurgical, and building materials. The large amount of waste heat generated during their operation contains considerable energy. Therefore, heat exchangers are needed to cool and separate this waste heat and allow it to re-enter the reaction equipment for cyclical reaction. Traditional synthesis furnace waste heat recovery devices often face serious vibration problems during operation. The high-speed flow of fluids in the heat exchanger and the continuous operation of power equipment such as circulating pumps and fans will generate varying degrees of vibration. Due to long-term vibration, the sealing performance of the connections may gradually decrease, leading to loosening, leakage, and other safety hazards. Furthermore, when the waste heat from the synthesis furnace is used to heat liquids to generate steam, the steam often carries a large number of liquid droplets. If not effectively separated, if the steam-water mixture is discharged together, the droplets may accumulate or backflow near the heat exchanger outlet, causing corrosion to the heat exchanger. Therefore, a combined synthesis furnace waste heat recovery device is needed.

[0003] Chinese Patent Publication No. CN209399347U discloses a combined waste heat recovery device, including a main body of the waste heat recovery device. A connecting mechanism is provided at the bottom of the main body. The connecting mechanism includes a limiting plate, a sliding column, a sliding hole, a protective plate, a bearing, a fixing hole, a first slot, a second slot, a first fixing block, and a second fixing block. The first fixing block in the aforementioned patent document is symmetrically installed and fixed on the outer surface of the bearing and placed inside the second slot. This facilitates the installation and fixing of the bearing inside the fixing hole and prevents movement, increasing the bearing's stability. Furthermore, the rotation of the sliding column inside the bearing reduces friction and extends the service life of the sliding column. The limiting plate and sliding column make the installation of the waste heat recovery device main body more convenient, reducing work difficulty, saving time, reducing scratches and damage to the main body of the waste heat recovery device during movement, increasing the service life of the sealing flange, and increasing work efficiency.

[0004] However, the above-mentioned patent documents still have the following defects in practice;

[0005] Although the aforementioned patented equipment can recover waste heat, it cannot buffer and dampen the heat exchanger during operation. The high-temperature gas or liquid flowing through the pipes and chambers of the heat exchanger may generate unstable forces due to changes in flow velocity, direction, and interaction with the heat exchange components, leading to vibration of the heat exchanger itself. This poses a serious threat to the sealing performance of pipe connections. Furthermore, it cannot effectively separate the large number of droplets entrained in the steam generated by the heated liquid. After the high-temperature exhaust gas heat exchange is completed, the steam-water mixture is discharged together, and the droplets may accumulate or flow back near the heat exchanger outlet, causing corrosion and shortening the equipment's service life. Utility Model Content

[0006] The main purpose of this utility model is to provide a combined synthesis furnace waste heat recovery device, which can effectively solve the problem of non-vibration damping.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A combined synthesis furnace waste heat recovery device includes a heat exchanger. A shock-absorbing mechanism is fixedly connected to the lower end of the heat exchanger. A heat source outlet pipe is fixedly connected to the front right side of the outer arc surface of the heat exchanger. A separation mechanism is fixedly connected to the right end of the heat source outlet pipe. A heat source inlet pipe and a cold source outlet pipe are fixedly connected to the rear left side of the outer arc surface of the heat exchanger, respectively. A cold source inlet pipe is fixedly connected to the rear right side of the outer arc surface of the heat exchanger.

[0009] Preferably, the damping mechanism includes a support base and a support plate. The support plate is fixedly connected to the lower end of the heat exchanger. A plurality of sliding columns are fixedly connected to the lower end of the support plate in a rectangular distribution. A spring is fixedly connected to the lower end of each of the sliding columns. A tube column is fixedly connected to the lower end of each of the springs. A support base is fixedly connected to the lower end of the tube columns together.

[0010] Preferably, the lower part of the outer surface of several of the sliding columns is slidably connected to the inner cavity of the same side column.

[0011] Preferably, the separation mechanism includes a tank body, the upper left side of the outer arc surface of the tank body is fixedly connected to the right end of the heat source outlet pipe, the left side of the inner cavity of the tank body is fixedly connected to a bending plate, the middle and lower right ends of the bending plate are respectively fixedly connected to umbrella plate one and umbrella plate two, the middle upper end of the tank body is fixedly connected to an air outlet pipe, and the lower end of the tank body is fixedly connected to a drainage mechanism.

[0012] Preferably, the right end of the heat source outlet pipe extends through the outer surface of the tank body to the outside and is connected to the inner cavity of the tank body, and the outer surfaces of the umbrella plate one and umbrella plate two are provided with several through holes.

[0013] Preferably, the drainage mechanism includes a straight pipe, the left end of which is fixedly connected to the middle of the lower end of the tank via a bend, a fixed plate is fixedly connected to the right side of the inner cavity of the straight pipe, a C-shaped block is fixedly connected to the upper side of the middle of the left end of the fixed plate, a rotating shaft is fixedly connected to the inner surface of the C-shaped block, a pad is fixedly connected to the lower end of the rotating shaft, and an air bladder is fixedly connected to the left end of the pad.

[0014] Preferably, the lower part of the outer surface of the fixed disk has a hole.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. During use, the shock absorption mechanism of this utility model can buffer and reduce the vibration of the heat exchanger during operation. It will not cause the heat exchanger body to vibrate due to the movement of high-temperature gas or liquid through the pipes and chambers of the heat exchanger, changes in flow velocity, changes in flow direction, and the interaction with heat exchange components. This will prevent the heat exchanger body from vibrating and will not seriously threaten the sealing performance of the pipe connection parts, thus extending the service life of the equipment.

[0017] 2. During use, the separation mechanism of this utility model can effectively separate the large number of liquid droplets entrained in the steam generated by the heated liquid, preventing the steam-water mixture from being discharged together after the high-temperature exhaust gas heat exchange is completed, and preventing the droplets from accumulating or flowing back near the heat exchanger outlet, thus preventing corrosion of the heat exchanger and effectively increasing the service life of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 For the present utility model Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic cross-sectional view of the separation mechanism of this utility model;

[0021] Figure 4 This is a cross-sectional structural diagram of the drainage mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the overall structure of this utility model from another perspective.

[0023] In the diagram: 1. Heat exchanger; 2. Vibration damping mechanism; 21. Support plate; 22. Tube column; 23. Support base; 24. Sliding column; 25. Spring; 3. Heat source outlet pipe; 4. Heat source inlet pipe; 5. Cold source outlet pipe; 6. Cold source inlet pipe; 7. Separation mechanism; 71. Tank body; 72. Bending plate; 73. Umbrella plate one; 74. Umbrella plate two; 75. Gas outlet pipe; 76. Drainage mechanism; 761. Straight pipe; 762. C-block; 763. Rotating shaft; 764. Gasket; 765. Airbag; 766. Fixed plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1 As shown, a combined synthesis furnace waste heat recovery device includes a heat exchanger 1. A shock-absorbing mechanism 2 is fixedly connected to the lower end of the heat exchanger 1. A heat source outlet pipe 3 is fixedly connected to the front right side of the outer arc surface of the heat exchanger 1. A separation mechanism 7 is fixedly connected to the right end of the heat source outlet pipe 3. A heat source inlet pipe 4 and a cold source outlet pipe 5 are fixedly connected to the rear left side of the outer arc surface of the heat exchanger 1, respectively. A cold source inlet pipe 6 is fixedly connected to the rear right side of the outer arc surface of the heat exchanger 1.

[0026] In the specific implementation process of this utility model, firstly, the high-temperature synthesis furnace exhaust gas is connected to the heat source inlet pipe 4 through a connecting pipe, and then the cold source that needs to exchange heat is connected to the cold source inlet pipe 6 through a connecting pipe. Then, the heat exchanger 1 is started. Under the action of the heat exchanger 1, the temperature of the high-temperature exhaust gas of the synthesis furnace is transferred to the cold source for heat exchange. During the operation of the heat exchanger 1, the vibration generated by the heat exchanger 1 is reduced by the vibration damping mechanism 2. After the high-temperature synthesis furnace exhaust gas of the heat source completes the heat transfer process in the heat exchanger 1, the separation mechanism 7 can separate the steam and liquid generated by the liquid during the heating and evaporation process, so that it will not be discharged with gas and liquid in the process of discharge.

[0027] Specifically, in order to achieve the purpose of damping the vibration generated by heat exchanger 1, refer to Figure 2 In this scheme, the shock absorption mechanism 2 includes a support base 23 and a support plate 21. The support plate 21 is fixedly connected to the lower end of the heat exchanger 1. A plurality of sliding columns 24 are fixedly connected to the lower end of the support plate 21 in a rectangular distribution. A spring 25 is fixedly connected to the lower end of each of the sliding columns 24. A tube column 22 is fixedly connected to the lower end of each of the springs 25. The support base 23 is fixedly connected to the lower end of the tube columns 22.

[0028] Furthermore, the lower part of the outer surface of several of the sliding columns 24 is slidably connected to the inner cavity of the same side column 22.

[0029] In the above, the contact surfaces of the sliding column 24 and the tube column 22 are coated with a damping coating. When the heat exchanger 1 vibrates during operation, it presses down on the support plate 21 and then transmits the vibration to the upper end of the sliding column 24 through the support plate 21, causing the sliding column 24 to slide in the inner cavity of the tube column 22. Then, the vibration is effectively reduced by the action of the spring 25 and the damping coating.

[0030] Specifically, in order to achieve the goal of separating the exhaust gas from the synthesis furnace, refer to Figure 3 The separation mechanism 7 includes a tank 71. The upper left side of the outer arc surface of the tank 71 is fixedly connected to the right end of the heat source outlet pipe 3. A bending plate 72 is fixedly connected to the left side of the inner cavity of the tank 71. Umbrella plate 1 73 and umbrella plate 2 74 are fixedly connected to the middle and lower right ends of the bending plate 72, respectively. An air outlet pipe 75 is fixedly connected to the middle upper end of the tank 71. A drainage mechanism 76 is fixedly connected to the lower end of the tank 71.

[0031] Furthermore, the right end of the heat source outlet pipe 3 extends through the outer surface of the tank body 71 to the outside and is connected to the inner cavity of the tank body 71. Several through holes are opened on the outer surfaces of the umbrella plate 1 73 and umbrella plate 2 74.

[0032] In the above process, the exhaust gas from the synthesis furnace is transferred to the inner cavity of the tank 71 through the heat source outlet pipe 3 after heat transfer. The output direction of the exhaust gas is changed by the set bending plate 72, causing the exhaust gas to move downward. The liquid droplets carried in the exhaust gas will directly collide with the left end of the bending plate 72. Since the density of the liquid droplets is greater than that of air, the liquid droplets will slide directly to the bottom of the inner cavity of the tank 71 and flow to the drainage mechanism 76 for discharge. Then, the air will move upward from the bottom through the umbrella plate 2 74 and the umbrella plate 1 73 in sequence and be discharged outward through the exhaust pipe 75. The set umbrella plate 2 74 and the exhaust pipe 75 can separate the fine water droplets carried in the exhaust gas, causing the water droplets to condense on the surface of umbrella plate 2 74 and umbrella plate 1 73 and flow downward.

[0033] Specifically, in order to discharge the liquid collected at the bottom of the tank 71, the drainage mechanism 76 includes a straight pipe 761. The left end of the straight pipe 761 is fixedly connected to the middle of the lower end of the tank 71 via a bend. A fixed plate 766 is fixedly connected to the right side of the inner cavity of the straight pipe 761. A C-shaped block 762 is fixedly connected to the upper side of the middle of the left end of the fixed plate 766. A rotating shaft 763 is fixedly connected to the inner surface of the C-shaped block 762. A gasket 764 is fixedly connected to the lower end of the rotating shaft 763. An airbag 765 is fixedly connected to the left end of the gasket 764.

[0034] Furthermore, the lower part of the outer surface of the fixed disk 766 is provided with holes.

[0035] In the above process, the liquid collected at the bottom of the tank 71 enters the inner cavity of the straight pipe 761 through the bend pipe, which causes the liquid to generate buoyancy on the airbag 765. This causes the airbag 765 to rise and simultaneously drive the pad 764 to rotate upward at the lower end of the C-shaped block 762, causing the pad 764 to leave the surface of the fixed plate 766, and the liquid to be discharged outward through the hole.

[0036] The working principle of this utility model is as follows: First, the high-temperature exhaust gas from the synthesis furnace is connected to the heat source inlet pipe 4 through a connecting pipe. Then, the cold source that needs to exchange heat is connected to the cold source inlet pipe 6 through a connecting pipe. Then, the heat exchanger 1 is started. Under the action of the heat exchanger 1, the temperature of the high-temperature exhaust gas from the synthesis furnace is transferred to the cold source for heat exchange. During the operation of the heat exchanger 1, the vibration generated by the heat exchanger 1 is reduced by the shock absorption mechanism 2. After the high-temperature exhaust gas from the synthesis furnace completes the heat transfer process in the heat exchanger 1, the separation mechanism 7 can separate the steam and liquid generated by the liquid during the heating and evaporation process, so that it will not be discharged with gas and liquid in the process of discharge.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined synthetic waste heat recovery device comprising a heat exchanger (1), characterized in that: The heat exchanger (1) lower end is fixedly connected with a damping mechanism (2), the heat exchanger (1) outer arc surface right side front is fixedly connected with a heat source outlet pipe (3), the heat source outlet pipe (3) right end is fixedly connected with a separation mechanism (7), the heat exchanger (1) outer arc surface left side rear is respectively fixedly connected with a heat source inlet pipe (4) and a cold source outlet pipe (5), the heat exchanger (1) outer arc surface right side rear is fixedly connected with a cold source inlet pipe (6).

2. A combined synthetic furnace waste heat recovery device according to claim 1, characterized in that: The damping mechanism (2) comprises a support seat (23) and a support plate (21), the support plate (21) is fixedly connected to the lower end of the heat exchanger (1), a plurality of slide columns (24) are fixedly connected to the lower end of the support plate (21) in a rectangular distribution, a plurality of springs (25) are fixedly connected to the lower end of each slide column (24), a plurality of pipe columns (22) are fixedly connected to the lower end of each spring (25), and the support seat (23) is fixedly connected to the lower end of each pipe column (22).

3. A combined synthetic furnace waste heat recovery device according to claim 2, characterized in that: The outer surface of each slide column (24) is slidably connected to the inner cavity of the same side pipe column (22).

4. A combined synthetic furnace waste heat recovery device according to claim 1, characterized in that: The separation mechanism (7) comprises a tank body (71), the tank body (71) outer arc surface left side upper part is fixedly connected to the right end of the heat source outlet pipe (3), the tank body (71) inner cavity left part is fixedly connected with a bent plate (72), the bent plate (72) right end middle part and lower part are respectively fixedly connected with umbrella plate one (73) and umbrella plate two (74), the tank body (71) upper end middle part is fixedly connected with an air outlet pipe (75), and the tank body (71) lower end is fixedly connected with a drainage mechanism (76).

5. A combined synthetic furnace waste heat recovery device according to claim 4, characterized in that: The right end of the heat source outlet pipe (3) extends through the outer surface of the tank body (71) to the outside and is in communication with the inner cavity of the tank body (71), and a plurality of through holes are formed in the outer surfaces of the umbrella plate one (73) and the umbrella plate two (74).

6. A combined synthetic furnace waste heat recovery device according to claim 4, characterized in that: The drainage mechanism (76) comprises a straight pipe (761), the straight pipe (761) left end is fixedly connected to the lower end middle part of the tank body (71) through an elbow pipe, the straight pipe (761) inner cavity right side is fixedly connected with a fixed disc (766), the fixed disc (766) left end middle part upper side is fixedly connected with a C-shaped block (762), the inner surface of the C-shaped block (762) is fixedly connected with a rotating shaft (763), the lower end of the rotating shaft (763) is fixedly connected with a pad disc (764), and the left end of the pad disc (764) is fixedly connected with an air bag (765).

7. A combined synthetic furnace waste heat recovery device according to claim 6, characterized in that: A hole is formed in the lower part of the outer surface of the fixed disc (766).

Images