CN216620696U

CN216620696U - Flue gas waste heat recovery device

Info

Publication number: CN216620696U
Application number: CN202123183227.9U
Authority: CN
Inventors: 徐跃庭; 潘恒华; 徐元春
Original assignee: Jiangsu Juyibang Environmental Technology Co ltd
Current assignee: Jiangsu Juyibang Environmental Technology Co ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-05-27
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a flue gas waste heat recovery device, and relates to the technical field of waste heat recovery devices. The flue gas waste heat recovery device comprises a shell, wherein a heat exchange cavity is arranged in the shell, the heat exchange cavity is provided with an air inlet and an air outlet, a first liquid storage tank is installed at the bottom of the heat exchange cavity, a second liquid storage tank is installed at the top of the heat exchange cavity, the first liquid storage tank and the second liquid storage tank are connected with a plurality of heat exchange tubes in parallel, and heat conducting fins are fixed on the heat exchange tubes. The device improves the heat conduction effect of the device through the heat exchange tubes arranged in parallel, improves the waste heat recovery efficiency, and is convenient for clean the heat exchange tubes and the heat conducting fins through arranging the cleaning mechanism, so that the heat conversion efficiency of the heat exchange tubes and the heat conducting fins is ensured, and the service life of the waste heat recovery device is prolonged.

Description

Flue gas waste heat recovery device

Technical Field

The utility model relates to the technical field of waste heat recovery devices, in particular to a flue gas waste heat recovery device.

Background

The waste heat recovery device is used as a common energy-saving device in modern industrial production activities, and is used for recovering and utilizing waste heat in the industrial production activities so as to reduce production cost, reduce energy consumption and realize green sustainable production.

The traditional waste heat recoverer has the advantages that the heat exchange tube is poor in heat transfer effect, the heat exchange tube is prone to being contaminated by waste dust in smoke, the heat transfer effect of the heat exchange tube is reduced, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The present invention is to solve one of the above problems, and therefore, we provide a flue gas waste heat recovery device.

The technical scheme adopted by the embodiment of the utility model is as follows: the utility model provides a flue gas waste heat recovery device, includes the casing, be equipped with the heat transfer chamber in the casing, the heat transfer chamber has air inlet and gas outlet, heat transfer chamber bottom is installed first liquid case that holds, the second holds the liquid case at heat transfer chamber top installation, first hold the liquid case with the second holds and has many heat exchange tubes in parallel between the liquid case, be fixed with the conducting strip on the heat exchange tube.

The utility model provides a flue gas waste heat recovery device is when using, and coolant is direct to hold the liquid case from first liquid case entering second through the heat exchange tube, and the high temperature flue gas of heat transfer intracavity passes through the conducting strip and gives coolant with heat transfer, because be parallel relation between each heat exchange tube, has reduced the length of heat exchange tube, and it is long to reduce the medium and keep somewhere the time in the heat exchange tube, and the heat exchange tube is the straight line form, and difficult jam is favorable to improving heat exchange tube heat transfer effect.

Preferably, an ash collecting chamber is arranged above the first liquid storage tank, a waste dust collecting bin is mounted outside the shell, and the waste dust collecting bin is communicated with the ash collecting chamber. The waste dust in the dust collecting chamber is timely cleaned through the waste dust collecting chamber, the waste dust is prevented from being accumulated, and the heat exchange effect of the heat exchange chamber is favorably improved.

Preferably, a guide rod is further arranged between the first liquid storage tank and the second liquid storage tank, a cleaning mechanism is sleeved on the guide rod, the waste heat recovery device further comprises a driving device, the driving device is used for driving the cleaning mechanism to reciprocate along the length direction of the guide rod, the inside of the heat exchange cavity is cleaned through the cleaning mechanism, and the heat exchange effect of the device is improved.

Further, the cleaning mechanism comprises a support and a cleaning brush arranged on the support, and the cleaning brush is coated outside the heat exchange tube and the heat conducting fin.

Preferably, the cross section of the heat conducting fin is wavy, so that the heat conducting effect of the heat conducting fin is improved.

Preferably, the air inlet with gas outlet department all is equipped with filtering mechanism, and filtering mechanism is used for filtering the flue gas, improves the heat transfer effect of device.

The utility model has the beneficial effects that:

1. this waste heat recovery device holds many heat exchange tubes of parallelly connected between the liquid case through holding at first liquid case and second, has reduced the length of heat exchange tube, and it is long to reduce the medium and keep somewhere in the heat exchange tube, and the heat exchange tube is sharp, and is difficult for blockking up, improves heat exchange tube heat transfer effect.

2. Through setting up clean mechanism, under drive arrangement's drive, the cladding can be clear away the dust waste attached to on heat exchange tube and conducting strip at the outside cleaning brush of heat exchange tube and conducting strip, has reduced the influence of dust waste to heat exchange tube and the thermal conversion of conducting strip, guarantees heat exchange tube and the thermal conversion efficiency of conducting strip, improves heat exchange tube heat transfer effect, has prolonged waste heat recovery device's life.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of the embodiment of the present invention;

FIG. 3 is a schematic top view of the internal structure of the embodiment of the present invention;

FIG. 4 is an enlarged view of a in FIG. 3;

fig. 5 is a schematic structural diagram of a driving method according to an embodiment of the utility model.

In fig. 1-5: 1. a housing; 11. an air outlet; 111. a temperature sensor; 112. an alarm; 12. an air inlet; 13. a guide bar; 2. a heat exchange cavity; 3. a heat conductive sheet; 4. a heat exchange pipe; 5. a dust collecting chamber; 6. a first liquid storage tank; 7. a second liquid storage tank; 8. a cleaning mechanism; 81. a support; 82. a cleaning brush; 9. a drive device; 91. a drive wheel; 92. a driven wheel; 93. a transmission belt; 10. and a waste dust collecting bin.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.

In traditional waste heat recoverer, generally adopt the heat exchange tube 4 of annular arrangement, the medium absorbs the heat in the flue gas in order to realize carrying out recycle to the heat in the flue gas when heat exchange tube 4 is inside to pass through, heat exchange tube 4 adopts the annular to arrange the length increase that leads to heat exchange tube 4, the medium is kept somewhere for a long time in heat exchange tube 4, the temperature difference between medium and the flue gas diminishes, heat exchange tube 4 heat transfer effect has been reduced, in addition, annular heat exchange tube 4 easily causes the jam, also can reduce heat exchange tube 4 heat transfer effect.

To this end, as shown in fig. 1 to 5, the flue gas waste heat recovery device according to an embodiment of the present invention includes a housing 1, a heat exchange cavity 2 is disposed in the housing 1, the heat exchange cavity 2 has an air inlet 12 and an air outlet 11, a first liquid storage tank 6 is mounted at the bottom of the heat exchange cavity 2, a second liquid storage tank 7 is mounted at the top of the heat exchange cavity 2, a plurality of heat exchange tubes 4 are connected in parallel between the first liquid storage tank 6 and the second liquid storage tank 7, when high temperature flue gas passes through the heat exchange cavity 2, a medium is dispersed from the first liquid storage tank 6 to each heat exchange tube 4, and then the medium in each heat exchange tube 4 is collected by the second liquid storage tank 7, the heat exchange tubes 4 are arranged in parallel, the length of the heat exchange tubes 4 can be reduced, the remaining time of the medium in the heat exchange tubes 4 is long, the heat exchange tubes 4 are not easily blocked, the heat transfer effect of the heat exchange tubes 4 is improved, in addition, heat conducting fins 3 are fixed outside the heat exchange tubes 4, the contact area with the flue gas is increased, the heat conduction effect of the heat conducting fins 3 is improved, and the heat exchange effect is further improved.

Further, as another embodiment of this application, set up to the wavy through with conducting strip 3, wavy conducting strip 3 can further increase with the area of contact of flue gas, improves the heat transfer effect.

In the embodiment of the application, as shown in fig. 1-2, an ash collecting chamber 5 is further arranged above the first liquid storage tank 6, a waste dust collecting bin 10 is installed outside the casing 1, the waste dust collecting bin 10 is communicated with the ash collecting chamber 5, a dust removing device is installed in the waste dust collecting bin 10, after flue gas enters the heat exchange chamber, the flow rate of flue gas is reduced, the deposition of entrained waste dust is reduced, the waste dust is collected into the waste dust collecting bin 10 through the dust removing device, the waste dust is timely cleaned, the waste dust is prevented from being accumulated in the ash collecting chamber 5, and the heat exchange effect of the heat exchange chamber is favorably improved.

Of course, in this embodiment, but dust collecting chamber 5 top sets up the waste dust collection structure that leaks hopper-shaped, improves the collection efficiency of waste dust, also can avoid the waste dust secondary to raise simultaneously, and the adhesion reduces the heat transfer effect on heat exchange tube 4.

In addition, as shown in fig. 2 to 5, a guide rod 13 is further arranged between the first liquid storage tank 6 and the second liquid storage tank 7, a cleaning mechanism 8 is sleeved on the guide rod 13, the cleaning mechanism 8 can slide up and down along the guide rod 13, the waste heat recovery device further comprises a driving device 9, the driving device 9 is used for driving the cleaning mechanism 8 to reciprocate along the length direction of the guide rod 13, the interior of the heat exchange cavity 2 is cleaned through the cleaning mechanism 8, and the heat exchange effect of the device is improved.

As shown in fig. 4, the cleaning mechanism 8 includes a support 81 and a cleaning brush 82 mounted on the support 81, and the cleaning brush 82 is coated outside the heat exchange tube 4 and the heat conducting strip 3, so that the driving device 9 drives the cleaning mechanism 8 to reciprocate along the length direction of the heat exchange tube 4, and the cleaning brush 82 can clean the waste dust attached to the heat exchange tube 4 and the heat conducting strip 3 without detaching and cleaning the device, thereby reducing the difficulty in cleaning the device and prolonging the service life of the device.

In this embodiment, as shown in fig. 5, the driving device 9 includes a clothing motor, a driving wheel 91 installed at the bottom of the heat exchange chamber, and a driven wheel 92 installed at the top of the heat exchange chamber, an output end of the clothing motor is connected to the driving wheel 91 through a transmission shaft, a transmission belt 93 passes through the driving wheel 91 and the driven wheel 92 and is fixed on the bracket 81, and the clothing motor drives the cleaning mechanism 8 to reciprocate up and down through forward and reverse rotation. Of course, this driving method is an exemplary illustration of the present application and should not be construed as a specific limitation of the present application.

In order to further reduce the influence of the waste dust, filter screens are arranged at the air inlet 12 and the air outlet 11, and the filter screens can filter the flue gas, so that the content of the waste dust in the flue gas is reduced, and the heat exchange effect of the waste heat recovery device is improved.

In addition, in this embodiment, a temperature sensor 111 and an alarm 112 are disposed at the position of the air outlet 11, and the temperature sensor 111 and the alarm 112 remind the operator, so that the operator can know the operation state of the device conveniently.

The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a flue gas waste heat recovery device, includes the casing, be equipped with the heat transfer chamber in the casing, the heat transfer chamber has air inlet and gas outlet, its characterized in that: the heat exchange cavity is characterized in that a first liquid storage box is installed at the bottom of the heat exchange cavity, a second liquid storage box is installed at the top of the heat exchange cavity, a plurality of heat exchange tubes are connected in parallel between the first liquid storage box and the second liquid storage box, and heat conducting fins are fixed on the heat exchange tubes.

2. The flue gas waste heat recovery device according to claim 1, characterized in that: first liquid case top is equipped with the dust collection room, casing externally mounted has the waste dust to collect the storehouse, the waste dust collect the storehouse with the dust collection room intercommunication.

3. The flue gas waste heat recovery device according to claim 1 or 2, wherein: the waste heat recovery device comprises a first liquid storage tank, a second liquid storage tank and a waste heat recovery device, and is characterized in that a guide rod is further arranged between the first liquid storage tank and the second liquid storage tank, a cleaning mechanism is sleeved on the guide rod, and the driving device is used for driving the cleaning mechanism to reciprocate along the length direction of the guide rod.

4. The flue gas waste heat recovery device according to claim 3, characterized in that: the cleaning mechanism comprises a support and a cleaning brush arranged on the support, and the cleaning brush is coated outside the heat exchange tube and the heat conducting fin.

5. The flue gas waste heat recovery device according to claim 1, characterized in that: the cross section of the heat conducting fin is wavy.

6. The flue gas waste heat recovery device according to claim 1, characterized in that: and a filtering mechanism is arranged at the air inlet and the air outlet.