Waste heat recovery device based on boiler waste gas

Abstract

The utility model discloses a waste heat recovery device based on boiler waste gas, and relates to the technical field of waste heat recovery devices. The waste heat recovery device based on the boiler waste gas comprises a box body, a cleaning mechanism used for cleaning the device is movably installed in the box body through a sliding groove, and a constant temperature mechanism is fixedly installed on one side of the box body through a pipe fitting. An operator manually pushes a magnet to move vertically, the magnet moving vertically can drive a magnet seat to move synchronously through magnetic force, and the magnet seat moving synchronously can drive a fixing sleeve to move. The movable fixing sleeve can drive the cleaning sleeve to move against the outer side of the copper bar in an abutting mode, the cleaning sleeve is provided with a soft brush material so that the copper bar can be conveniently cleaned in an abutting mode, the function of cleaning the copper bar is achieved, the flue gas waste heat recovery efficiency is improved, and convenience is provided for stable waste heat recovery through the device.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery devices, in particular to a waste heat recovery device based on boiler exhaust gas. Background Art

[0002] Waste heat recovery device is also called heat exchanger, waste heat recoverer, etc. When using boiler for production operations, it is necessary to discharge the residual waste heat inside the boiler. The waste heat recovery device can be used to recycle the boiler exhaust gas, which increases the utilization rate of boiler waste heat and also increases the energy-saving and environmental protection effect of using the boiler.

[0003] A waste heat recovery device is needed to recover waste heat from a boiler. Among them, the "A boiler exhaust gas waste heat recovery device" disclosed in the application number "CN214501293U" has solved the various drawbacks of most small boilers that directly discharge exhaust gas into the air, wasting the remaining heat energy in the boiler exhaust gas.

[0004] However, there are still many defects in the actual use of waste heat recovery devices with similar structures, such as: it does not have the function of cleaning the device, and after the device is used for a long time, it is easy to cause the particles contained in the flue gas to be adsorbed into the inside of the device, resulting in the problem of reduced heat exchange efficiency of the device, reducing the efficiency of waste heat recovery from flue gas, and unable to guarantee the subsequent use of the device for stable waste heat recovery operations. At the same time, it does not have the function of intelligent constant temperature heating, resulting in the problem of the water source being hot and cold when the device is used to recover waste heat, reducing the stability of the device operation, and unable to guarantee the long-term stable operation of the device. Therefore, it is necessary to design a waste heat recovery device based on boiler exhaust gas. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a waste heat recovery device based on boiler exhaust gas to solve the above problems.

[0006] To achieve the above purpose, the utility model is implemented by the following technical solutions: a waste heat recovery device based on boiler exhaust gas, comprising a box body, a cleaning mechanism for cleaning the device is movably installed inside the box body through a slide groove, and a constant temperature mechanism is fixedly installed on one side of the box body through a pipe fitting;

[0007] The cleaning mechanism comprises a fixed sleeve, a cleaning sleeve is fixedly installed inside the fixed sleeve, a connecting rod is fixedly installed on one side of the fixed sleeve, a magnet seat is fixedly installed on one end of the connecting rod, two groups of movable grooves are opened on the front of the box body, and magnets corresponding to the magnet seat are movably installed inside the movable grooves;

[0008] The constant temperature mechanism comprises a shell, a servo motor is fixedly installed on the top of the shell, a water outlet pipe is fixedly installed on the bottom of the box, and a temperature sensor is fixedly installed on one side of the water outlet pipe.

[0009] Preferably, an air outlet pipe is fixedly installed on one side of the bottom of the box body, and a connecting pipe sleeve is fixedly installed on one end of the air outlet pipe.

[0010] Preferably, a valve plate is fixedly mounted on the output end of the servo motor, and an air intake pipe is fixedly mounted on one side of the shell.

[0011] Preferably, coiled copper bars are installed at equal intervals inside the box, and a water inlet pipe is fixedly installed on the top of the copper bars.

[0012] Preferably, a support rod is fixedly mounted on the back side of the box body, and a mounting plate is fixedly mounted on one end of the support rod.

[0013] Preferably, a plurality of mounting holes are provided on one side of the mounting plate, and bolts are threadedly installed inside the mounting holes.

[0014] Beneficial Effects

[0015] The utility model provides a waste heat recovery device based on boiler exhaust gas. Compared with the prior art, it has the following beneficial effects:

[0016] 1. The operator manually pushes the magnet to move the vertical position, and the magnet that moves the vertical position can drive the magnet seat to move synchronously through magnetic force, and the magnet seat that moves synchronously can drive the fixed sleeve to move the position, and the movable fixed sleeve can drive the cleaning sleeve to move against the outside of the copper bar, and then the cleaning sleeve has a soft brush material to facilitate the resistance cleaning of the copper bar, thereby realizing the function of cleaning the copper bar, avoiding the problem of reduced heat exchange efficiency of the copper bar caused by particles contained in the flue gas adsorbed to the outside of the copper bar, improving the efficiency of waste heat recovery from the flue gas, and providing convenience for the subsequent use of the device to perform stable waste heat recovery.

[0017] 2. The temperature of the flowing water source inside the outlet pipe is monitored in real time by energizing the temperature sensor, and the servo motor is controlled to rotate the valve plate according to the preset value of the temperature sensor. The air intake flow inside the shell can be adjusted by adjusting the rotation position of the valve plate, so as to control the air flow entering the box, and indirectly achieve the purpose of controlling the water source exchange temperature. The servo motor and the temperature sensor can realize the function of intelligent constant temperature heating, avoid the problem of hot and cold water source caused by using the device to recover waste heat, increase the stability of the device operation, and facilitate long-term stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front cross-sectional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the partial structure of the cleaning mechanism of the utility model;

[0021] Figure 4 It is a schematic diagram of the local structure of the constant temperature mechanism of the utility model.

[0022] In the figure: 1. box body; 101. air outlet pipe; 102. air inlet pipe; 2. cleaning mechanism; 201. fixing sleeve; 202. cleaning sleeve; 203. connecting rod; 204. magnetic seat; 205. magnet; 3. constant temperature mechanism; 301. shell; 302. servo motor; 303. valve plate; 304. temperature sensor; 305. water outlet pipe; 4. copper busbar; 401. water inlet pipe; 5. support rod; 501. mounting plate; 6. bolt. DETAILED DESCRIPTION

[0023] 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.

[0024] The utility model provides two technical solutions:

[0025] Figure 1 , Figure 2 , Figure 3 , Figure 4 The first embodiment is shown: a waste heat recovery device based on boiler exhaust gas, comprising a box body 1, a cleaning mechanism 2 for cleaning the device is movably installed inside the box body 1 through a slide groove, and a constant temperature mechanism 3 is fixedly installed on one side of the box body 1 through a pipe fitting;

[0026] The cleaning mechanism 2 comprises a fixed sleeve 201, a cleaning sleeve 202 is fixedly installed inside the fixed sleeve 201, a connecting rod 203 is fixedly installed on one side of the fixed sleeve 201, a magnet seat 204 is fixedly installed on one end of the connecting rod 203, two sets of movable grooves are opened on the front side of the box body 1, and magnets 205 corresponding to the magnet seat 204 are movably installed inside the movable grooves;

[0027] The constant temperature mechanism 3 includes a housing 301, a servo motor 302 is fixedly installed on the top of the housing 301, a water outlet pipe 305 is fixedly installed on the bottom of the box 1, and a temperature sensor 304 is fixedly installed on one side of the water outlet pipe 305;

[0028] An air outlet pipe 101 is fixedly installed on one side of the bottom of the box body 1, and a connecting pipe sleeve is fixedly installed on one end of the air outlet pipe 101. Coiled copper bars 4 are equidistantly installed inside the box body 1, and a water inlet pipe 401 is fixedly installed on the top of the copper bar 4. A support rod 5 is fixedly installed on the back of the box body 1, and a mounting plate 501 is fixedly installed on one end of the support rod 5.

[0029] After the device is installed at the designated installation position, it can be connected to the external equipment through the air outlet pipe 101 to facilitate the discharge treatment of the exhaust gas discharged from the box body 1. The support rod 5 can provide support for the installation plate 501. The installation plate 501 can facilitate the device to fit the outside of the boiler. The water source entering the copper bar 4 can facilitate the temperature exchange with the air containing waste heat inside the box body 1, so that the water source inside the copper bar 4 gives heat, realizing the function of recovering the waste heat of the boiler.

[0030] The operator manually pushes the magnet 205 to move the vertical position, and the magnet 205 that moves the vertical position can drive the magnet seat 204 to move the synchronous position through magnetic force, and the magnet seat 204 that moves the synchronous position can drive the fixed sleeve 201 to move the position, and the movable fixed sleeve 201 can drive the cleaning sleeve 202 to move against the outer side of the copper busbar 4, and then the cleaning sleeve 202 has a soft brush material to facilitate the cleaning of the copper busbar 4, thereby realizing the function of cleaning the copper busbar 4.

[0031] Figure 1 , Figure 2 , Figure 4 A second embodiment is shown, which mainly differs from the first embodiment in that a plurality of mounting holes are provided on one side of the mounting plate 501, and bolts 6 are threadedly installed inside the mounting holes; a valve plate 303 is fixedly installed on the output end of the servo motor 302, and an intake pipe 102 is fixedly installed on one side of the shell 301.

[0032] The mounting holes can provide mounting positions for the bolts 6, and the bolts 6 can be used to facilitate mounting the device to the outside of the boiler, thereby facilitating fixing the mounting position of the device;

[0033] By energizing the temperature sensor 304, the temperature of the flowing water source inside the water outlet pipe 305 is monitored in real time, and the servo motor 302 is controlled to be energized and run according to the preset value of the temperature sensor 304 to drive the valve plate 303 to rotate. By adjusting the rotation position of the valve plate 303, the air intake flow inside the shell 301 can be adjusted, thereby facilitating the control of the air flow entering the box body 1, and indirectly achieving the purpose of controlling the water source exchange temperature. The servo motor 302 and the temperature sensor 304 are used in conjunction to realize the function of intelligent constant temperature heating.

[0034] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment can be used.

[0035] 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.

[0036] Although the 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 waste heat recovery device based on boiler exhaust gas, comprising a housing (1), characterized in that: A cleaning mechanism (2) for cleaning the device is movably installed inside the box (1) via a slide groove, and a constant temperature mechanism (3) is fixedly installed on one side of the box (1) via a pipe fitting; The cleaning mechanism (2) comprises a fixed sleeve (201), a cleaning sleeve (202) is fixedly installed inside the fixed sleeve (201), a connecting rod (203) is fixedly installed on one side of the fixed sleeve (201), a magnetic seat (204) is fixedly installed on one end of the connecting rod (203), two groups of movable grooves are opened on the front side of the box body (1), and magnets (205) corresponding to the magnetic seat (204) are movably installed inside the movable grooves; The constant temperature mechanism (3) comprises a shell (301), a servo motor (302) is fixedly mounted on the top of the shell (301), a water outlet pipe (305) is fixedly mounted on the bottom of the box (1), and a temperature sensor (304) is fixedly mounted on one side of the water outlet pipe (305).

2. The waste heat recovery device based on boiler exhaust gas according to claim 1 is characterized in that: An air outlet pipe (101) is fixedly mounted on one side of the bottom of the box body (1), and a connecting pipe sleeve is fixedly mounted on one end of the air outlet pipe (101).

3. The waste heat recovery device based on boiler exhaust gas according to claim 1 is characterized in that: A valve plate (303) is fixedly mounted on the output end of the servo motor (302), and an air intake pipe (102) is fixedly mounted on one side of the housing (301).

4. The waste heat recovery device based on boiler exhaust gas according to claim 1 is characterized in that: Coiled copper bars (4) are installed at equal intervals inside the box body (1), and a water inlet pipe (401) is fixedly installed on the top of the copper bar (4).

5. The waste heat recovery device based on boiler exhaust gas according to claim 1 is characterized in that: A support rod (5) is fixedly mounted on the back of the box body (1), and a mounting plate (501) is fixedly mounted on one end of the support rod (5).

6. The waste heat recovery device based on boiler exhaust gas according to claim 5 is characterized in that: A plurality of mounting holes are provided on one side of the mounting plate (501), and bolts (6) are threadedly installed inside the mounting holes.

Images