Heat exchanger for preheating desorption waste gas

Abstract

The utility model discloses a heat exchanger for preheating desorption waste gas, and particularly relates to the technical field of waste gas preheating, the heat exchanger comprises a gas inlet pipe, the right end of the outer surface of a gas outlet pipe is fixedly connected with a primary filtering mechanism, and a plurality of adsorption mechanisms are distributed in a bearing mechanism at intervals in a sliding connection mode; the top of the bearing mechanism is fixedly connected with a heating mechanism, and a first heat exchanger is fixedly installed on the right side outside the connecting assembly. According to the heat exchanger for preheating the desorption waste gas, large-particle impurities contained in the waste gas can be filtered through the primary filtering mechanism, and meanwhile harmful substances contained in the waste gas can be fully filtered through the adsorption mechanism; and the temperature in the bearing mechanism can be monitored in real time through the temperature detection mechanism, waste gas can be desorbed under the action of the heating mechanism, and the practicability and universality of the device are improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas preheating technology, and in particular to a heat exchanger for preheating desorbed waste gas. Background Technology

[0002] A heat exchanger is a device that transfers some of the heat from a hot fluid to a cold fluid; it is also called a heat exchanger. Heat exchangers play an important role in chemical, petroleum, power, food, and many other industrial production processes. In chemical production, heat exchangers can be used as heaters, coolers, condensers, evaporators, and reboilers, and are widely used.

[0003] Existing heat exchangers for preheating desorbed waste gas cannot fully desorb the waste gas from the surface of the activated carbon adsorption layer during the desorption process. As a result, harmful substances in the waste gas are not effectively removed, and these harmful substances can easily enter the inner cavity of the heat exchanger and affect its normal operation. Utility Model Content

[0004] The main purpose of this invention is to provide a heat exchanger for preheating desorbed waste gas, which can effectively solve the problem of insufficient desorption of waste gas from the surface of activated carbon adsorption layer.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A heat exchanger for preheating desorbed waste gas includes an inlet pipe, a blower fixedly connected to the right end of the outer surface of the inlet pipe, an exhaust pipe fixedly connected to the right output end of the blower, a primary filtration mechanism fixedly connected to the right end of the outer surface of the exhaust pipe, a support mechanism fixedly connected to the right side of the primary filtration mechanism, a plurality of adsorption mechanisms slidably connected at intervals inside the support mechanism, temperature detection mechanisms symmetrically fixedly connected to the left and right sides of the bottom inside the support mechanism, a heating mechanism fixedly connected to the top of the support mechanism, a connecting assembly fixedly connected to the right side of the outside of the support mechanism, and a heat exchanger fixedly mounted on the right side of the outside of the connecting assembly.

[0007] Preferably, the primary filtration mechanism includes a dust collector bag, a filter screen is fixedly installed on the right side of the inner cavity of the dust collector bag, and an air jet pipe is fixedly connected to the right end of the outer surface of the dust collector bag, with the right side of the outer surface of the air jet pipe fixedly connected to the left side of the exhaust pipe.

[0008] Preferably, the heating mechanism includes an air heater, with air supply pipes symmetrically fixedly connected to both ends of the left side of the outer surface of the air heater, a gas diffuser fixedly connected to the lower output end of the air supply pipe located on the right side, and a gas solenoid valve installed and fixedly installed at the lower input end of the inner cavity of the air supply pipe located on the left side, and the lower input end of the outer surface of the air heater is connected to the middle of the inner cavity of the exhaust pipe.

[0009] Preferably, the bearing mechanism includes a bearing box, and a plurality of guide frames are fixedly connected to the bottom wall and top wall of the inner cavity of the bearing box at intervals. A plurality of through holes communicating with the outside are opened at intervals in the middle of the plurality of guide frames, and the top wall of the inner cavity of the bearing box is fixedly connected to the upper part of the outer surface of the air diffuser.

[0010] Preferably, the temperature detection mechanism includes a mounting base, a temperature sensor is fixedly mounted in the middle of the inner cavity of the mounting base, and the lower end of the outer surface of the mounting base is fixedly connected to the bottom wall of the inner cavity of the carrier box.

[0011] Preferably, the connecting assembly includes a connecting pipe, a second gas solenoid valve is fixedly installed in the middle of the inner cavity of the connecting pipe, and the left end of the outer surface of the connecting pipe is fixedly connected to the right end of the outer surface of the carrier box.

[0012] Preferably, the adsorption mechanism includes a loading box, the inner cavity of which is filled with sufficient activated carbon, and the upper and lower ends of the outer surface of the loading box are slidably connected to the inner cavities of the corresponding guide frames.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model can filter large particulate impurities in waste gas through the primary filtration mechanism, support and fix several adsorption mechanisms and temperature detection mechanisms through the support mechanism, and fully filter harmful substances in waste gas through the adsorption mechanism, thus improving the practicality of the device. The temperature detection mechanism can monitor the internal temperature of the support mechanism in real time. The heating mechanism can desorb waste gas, and the connecting component can facilitate the control of the gas inside the support mechanism to enter the inner cavity of the heat exchanger, thus improving the practicality and versatility of the device.

[0015] 2. After delivering an appropriate amount of waste gas into the inner cavity of the carrier box, the present invention uses an air heater to heat the outside air and then deliver it into the inner cavity of the carrier box. This allows the waste gas to be fully and quickly desorbed from the several activated carbon saturated chambers under the action of hot air, thereby accelerating the desorption and purification rate of the waste gas and improving the practicality and versatility of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the primary filtration mechanism and the heating mechanism of this utility model;

[0018] Figure 3This is a schematic diagram of the supporting mechanism, temperature detection mechanism, and connecting components of this utility model;

[0019] Figure 4 This is a schematic diagram of the adsorption mechanism of this utility model.

[0020] In the diagram: 1. Inlet pipe; 2. Blower; 3. Exhaust pipe; 4. Primary filtration mechanism; 41. Dust collector bag; 42. Filter screen; 43. Jet pipe; 5. Supporting mechanism; 51. Supporting box; 52. Guide frame; 53. Through hole; 6. Adsorption mechanism; 61. Loading box; 62. Activated carbon; 7. Temperature detection mechanism; 71. Mounting base; 72. Temperature sensor; 8. Heating mechanism; 81. Air heater; 82. Gas supply pipe; 83. Gas diffuser; 84. Gas solenoid valve one; 9. Connecting assembly; 91. Connecting pipe; 92. Gas solenoid valve two; 10. Heat exchanger one. Detailed Implementation

[0021] 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.

[0022] like Figure 1 As shown, a heat exchanger for preheating desorbed waste gas includes an inlet pipe 1. A blower 2 is fixedly connected to the right end of the outer surface of the inlet pipe 1. An exhaust pipe 3 is fixedly connected to the right output end of the blower 2. A primary filter mechanism 4 is fixedly connected to the right end of the outer surface of the exhaust pipe 3, which can filter large particulate impurities contained in the waste gas. A support mechanism 5 is fixedly connected to the right side of the primary filter mechanism 4, which can support and fix several adsorption mechanisms 6 and a temperature detection mechanism 7. Several adsorption mechanisms 6 are slidably connected at intervals inside the support mechanism 5, which can fully filter harmful substances contained in the waste gas. Temperature detection mechanisms 7 are symmetrically fixedly connected to the left and right sides of the bottom inside the support mechanism 5, which can monitor the temperature inside the support mechanism 5 in real time. A heating mechanism 8 is fixedly connected to the top of the support mechanism 5, which can desorb the waste gas. A connecting component 9 is fixedly connected to the right side of the outside of the support mechanism 5, which can facilitate the control of the gas inside the support mechanism 5 to enter the inner cavity of the heat exchanger 10. The heat exchanger 10 is installed and fixed on the right side of the outside of the connecting component 9.

[0023] To achieve the purpose of filtering large particulate impurities contained in exhaust gas, please refer to... Figure 2The primary filtration mechanism 4 includes a dust collector bag 41. A filter screen 42 is installed and fixed on the right side of the inner cavity of the dust collector bag 41, which can facilitate the interception and filtration of particulate impurities contained in the exhaust gas. An air jet pipe 43 is fixedly connected to the right end of the outer surface of the dust collector bag 41, and a gas solenoid valve 3, which is the same as the gas solenoid valve 84 and the gas solenoid valve 92, is installed on the left side of the inner cavity of the air jet pipe 43. The right side of the outer surface of the air jet pipe 43 is fixedly connected to the left side of the exhaust pipe 3.

[0024] To achieve the purpose of desorption of exhaust gas, refer to Figure 2 The heating mechanism 8 includes an air heater 81. Air supply pipes 82 are symmetrically fixedly connected to both ends of the left side of the outer surface of the air heater 81. A diffuser 83 is fixedly connected to the lower output end of the air supply pipe 82 located on the right side. A gas solenoid valve 84 is installed and fixedly installed at the lower input end of the inner cavity of the air supply pipe 82 located on the left side. The lower input end of the outer surface of the air heater 81 is connected to the middle of the inner cavity of the exhaust pipe 3.

[0025] When hot air needs to be supplied to the inner cavity of the carrier box 51, the air solenoid valve 3 in the inner cavity of the jet pipe 43 is closed while the gas solenoid valve 84 is opened. Then, the outside air is supplied to the inner cavity of the air heater 81 through the blower 2 along the inner cavity of the air supply pipe 82 located on the left, so that it is heated and then evenly discharged into the inner cavity of the carrier box 51 through the air diffuser 83.

[0026] To achieve the purpose of supporting and fixing the adsorption mechanism 6 and the temperature detection mechanism 7, refer to... Figure 3 The supporting mechanism 5 includes a supporting box 51. Several guide frames 52 are fixedly connected to the bottom and top walls of the inner cavity of the supporting box 51 at intervals, which can facilitate the support of the loading box 61. Several through holes 53 communicating with the outside are evenly distributed in the middle of the several guide frames 52, which can allow the hot air discharged from the vent 83 to enter the inner cavity of the several loading boxes 61. The top wall of the inner cavity of the supporting box 51 is fixedly connected to the upper part of the outer surface of the vent 83.

[0027] To achieve real-time temperature monitoring inside the bearing mechanism 5, please refer to... Figure 3 The temperature detection mechanism 7 includes a mounting base 71. A temperature sensor 72 is fixedly installed in the middle of the inner cavity of the mounting base 71, which can monitor the temperature of the inner cavity of the bearing box 51 in real time, and prevent the phenomenon of deactivation of some activated carbon 62 due to excessive temperature in the inner cavity of the bearing box 51. The lower end of the outer surface of the mounting base 71 is fixedly connected to the bottom wall of the inner cavity of the bearing box 51.

[0028] To facilitate the control of the gas entering the inner cavity of the heat exchanger 10 from the bearing mechanism 5, refer to... Figure 3The connecting component 9 includes a connecting pipe 91. A gas solenoid valve 92 is installed and fixed in the middle of the inner cavity of the connecting pipe 91, which can realize the function of discharging the gas into the inner cavity of the heat exchanger 10 after the exhaust gas is fully desorbed. The left end of the outer surface of the connecting pipe 91 is fixedly connected to the right end of the outer surface of the bearing box 51.

[0029] To achieve the goal of fully filtering harmful substances contained in exhaust gas, please refer to... Figure 4 The adsorption mechanism 6 includes a loading box 61, the inner cavity of which is filled with a sufficient amount of activated carbon 62, which can filter and purify the harmful substances contained in the exhaust gas. The upper and lower ends of the outer surface of the loading box 61 are slidably connected to the inner cavity of the corresponding guide frame 52.

[0030] It should be noted that in this utility model, the blower 2 is model T4-72, the temperature sensor 72 is model 602F-3500F, the air heater 81 is model A75TH, and the gas solenoid valve 84 and the gas solenoid valve 92 are model 2P025-06. The specific installation methods, circuit connection methods, and control methods of the blower 2, temperature sensor 72, air heater 81, gas solenoid valve 84, and gas solenoid valve 92 are all conventional designs, and this utility model will not elaborate on them in detail.

[0031] The working principle of this utility model is as follows: First, connect the left end of the air inlet pipe 1 to the exhaust gas source. Then, turn on the power of the blower 2 to transport the exhaust gas to the inner cavity of the dust collector bag 41. After filtering the particulate impurities contained in the exhaust gas through the jet pipe 43, the exhaust gas will enter the inner cavity of the carrier box 51 through the inner cavity of the jet pipe 43. When the inner cavity of the carrier box 51 stores an appropriate amount of exhaust gas, open the gas solenoid valve 84. Then, the blower 2 will transport the outside air to the inner cavity of the air heater 81 through the air supply pipe 82 located on the left. Heater 81 heats the gas and then discharges it into the inner cavity of the carrier box 51 through the diffuser 83. When the temperature of the inner cavity of the carrier box 51 reaches the required value, the air solenoid valve three in the inner cavity of the jet pipe 43 is closed. At this time, the exhaust gas will be desorbed from the several saturated activated carbons 62. Then, the gas solenoid valve two 92 is opened. Driven by the hot air discharged from the diffuser 83, the desorbed exhaust gas will enter the heat exchanger 10 along the inner cavity of the connecting pipe 91, and then continue to the next process through the heat exchanger 10.

[0032] 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 heat exchanger for preheating desorbed waste gas, comprising an inlet pipe (1), characterized in that: A blower (2) is fixedly connected to the right end of the outer surface of the air intake pipe (1). An exhaust pipe (3) is fixedly connected to the right output end of the blower (2). A primary filter mechanism (4) is fixedly connected to the right end of the outer surface of the exhaust pipe (3). A carrying mechanism (5) is fixedly connected to the right side of the primary filter mechanism (4). Several adsorption mechanisms (6) are slidably connected at intervals inside the carrying mechanism (5). Temperature detection mechanisms (7) are symmetrically fixedly connected to the bottom side inside the carrying mechanism (5). A heating mechanism (8) is fixedly connected to the top of the carrying mechanism (5). A connecting assembly (9) is fixedly connected to the right side of the outside of the carrying mechanism (5). A heat exchanger (10) is installed and fixedly fixed to the right side of the connecting assembly (9).

2. A heat exchanger for preheating desorbed waste gas according to claim 1, characterized in that: The primary filtration mechanism (4) includes a dust collector bag (41), a filter screen (42) is fixedly installed on the right side of the inner cavity of the dust collector bag (41), and an air jet pipe (43) is fixedly connected to the right end of the outer surface of the dust collector bag (41), and the right side of the outer surface of the air jet pipe (43) is fixedly connected to the left side of the exhaust pipe (3).

3. A heat exchanger for preheating desorbed waste gas according to claim 1, characterized in that: The heating mechanism (8) includes an air heater (81). The air heater (81) has two symmetrically fixed air pipes (82) on the left side of its outer surface. The lower output end of the air pipe (82) on the right side is fixedly connected to a diffuser (83). A gas solenoid valve (84) is installed and fixed at the lower input end of the inner cavity of the air pipe (82) on the left side. The lower input end of the outer surface of the air heater (81) is connected to the middle of the inner cavity of the exhaust pipe (3).

4. A heat exchanger for preheating desorbed waste gas according to claim 3, characterized in that: The bearing mechanism (5) includes a bearing box (51). The bottom and top walls of the inner cavity of the bearing box (51) are fixedly connected with a number of guide frames (52) at intervals. The middle of the guide frames (52) is provided with a number of through holes (53) that communicate with the outside. The top wall of the inner cavity of the bearing box (51) is fixedly connected to the upper part of the outer surface of the air diffuser (83).

5. A heat exchanger for preheating desorbed waste gas according to claim 4, characterized in that: The temperature detection mechanism (7) includes a mounting base (71), a temperature sensor (72) is fixedly installed in the middle of the inner cavity of the mounting base (71), and the lower end of the outer surface of the mounting base (71) is fixedly connected to the bottom wall of the inner cavity of the bearing box (51).

6. A heat exchanger for preheating desorbed waste gas according to claim 4, characterized in that: The connecting assembly (9) includes a connecting pipe (91), a gas solenoid valve (92) is fixedly installed in the middle of the inner cavity of the connecting pipe (91), and the left end of the outer surface of the connecting pipe (91) is fixedly connected to the right end of the outer surface of the bearing box (51).

7. A heat exchanger for preheating desorbed waste gas according to claim 4, characterized in that: The adsorption mechanism (6) includes a loading box (61), the inner cavity of which is filled with a sufficient amount of activated carbon (62), and the upper and lower ends of the outer surface of the loading box (61) are slidably connected to the inner cavity of the corresponding guide frame (52).

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