CN217585428U - Heat exchanger for power plant - Google Patents

Abstract

The utility model discloses a heat exchanger is used in power plant, including the base, still include: the filtering mechanism and the heat exchange mechanism are respectively arranged on the left side and the right side of the upper surface of the base; one end of the air pipe is arranged on the right side of the filtering mechanism, and the other end of the air pipe is connected with the left side of the heat exchange mechanism; the driving mechanism is arranged at the top end of the filtering mechanism and used for lifting the filtering mechanism; the filter mechanism includes: the dust collection box is arranged on the left side of the upper surface of the base, and the right side of the dust collection box is connected with the end part of the air pipe. This heat exchanger for power plant, when in-service use, can avoid floating to form the haze in the air to the flue gas edulcoration before the heat transfer, prevent that impurity from gathering in the casing and polluting the casing, it is clean frequent to reduce, uses labour saving and time saving, can regularly clean U type pipe in addition, guarantees that U type pipe outer wall is clean, guarantees flue gas heat exchange efficiency.

Description

Heat exchanger for power plant

Technical Field

The utility model relates to a thermal power technical field specifically is a heat exchanger is used in power plant.

Background

Thermal power generation, which utilizes the heat energy generated by combustible materials during combustion to convert the heat energy into electric energy through a power generation power device. China has rich coal resources, and thermal power generation is the main power generation mode of China;

the thermal power generation can not be separated from the heat exchanger, and the flue gas generated by coal combustion needs to be subjected to flue gas purification treatment through a plurality of links such as heat exchanger cooling, flue gas desulfurization and the like, so that pollution-free emission of the flue gas can be realized. There are a large amount of impurities in the flue gas, at present, can't be before the heat transfer to the flue gas edulcoration, the direct heat transfer cooling of flue gas can cause impurity gathering in the heat exchanger, leads to the heat exchanger clean frequent, and it wastes time and energy to use, and the cooling tube is fixed in the heat exchanger moreover, is in dense cigarette environment for a long time, and moisture or impurity wall built-up easily appear in the cooling tube outer wall, influence flue gas heat exchange efficiency, the problem that the flue gas temperature can not drop easily appears.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat exchanger is used in power plant to solve prior art at least and can not be preferred to the flue gas edulcoration, the heat exchanger uses wastes time and energy, and the interior cooling tube of heat exchanger easily appears impurity wall built-up, is unfavorable for the problem of flue gas heat exchange.

In order to achieve the above object, the utility model provides a following technical scheme: a heat exchanger for power plant, includes the base, still includes: the filtering mechanism and the heat exchange mechanism are respectively arranged on the left side and the right side of the upper surface of the base; one end of the air pipe is arranged on the right side of the filtering mechanism, and the other end of the air pipe is connected with the left side of the heat exchange mechanism; the driving mechanism is arranged at the top end of the filtering mechanism and used for lifting the filtering mechanism;

the filter mechanism includes: the dust collection box is arranged on the left side of the upper surface of the base, and the right side of the dust collection box is connected with the end part of the air pipe; the dust collection cover is arranged at the bottom end of the dust collection box and is trapezoidal in shape; the collecting box is arranged at the bottom end of the dust collection cover; the dust collecting cylinder is placed in the inner cavity of the dust collecting box; two active carbon filter screens are respectively arranged at the left side and the right side of the inner cavity of the dust collecting cylinder; the dust hoppers are four in number, every two dust hoppers form a group and are respectively arranged on the left side and the right side of the bottom end of the dust collecting cylinder, and the two dust hoppers are respectively positioned on the left side and the right side of the activated carbon filter screen; the number of the baffle plates is two, and the baffle plates are respectively detachably arranged on the left side and the right side of the dust collecting cylinder; one end of the first hose is arranged at the central position of the baffle, the other end of the first hose is arranged on the inner wall of the dust collection box, and the first hose is communicated with the air pipe;

the heat exchange mechanism comprises: the number of the supporting seats is two, and the two supporting seats are arranged on the right side of the upper surface of the base; the shell is arranged at the top end of the supporting seat; the air inlet connecting pipe is arranged at the left end of the bottom of the shell; the air outlet connecting pipe is arranged at the right end of the top of the shell; the partition plates are arranged on the upper surface and the lower surface of the inner wall of the shell at equal intervals from left to right; the number of the cover bodies is two, and the cover bodies are respectively arranged on the left side and the right side of the shell; the hydraulic oil cylinder is arranged at the right center of the cover body positioned on the right side; the push plate is arranged at the output end of the hydraulic oil cylinder; the number of the multiple channels is two, and the multiple channels are respectively arranged at the upper end and the lower end of the push plate; the number of the second hoses is two, one end of each second hose is arranged on the main path of the multi-way, and the other end of each second hose is connected with the outer wall of the cover body on the right side; the U-shaped pipes are arranged on the multi-way branches from front to back and penetrate through the outer wall of the partition board; and the brush is arranged on the right side wall of the partition board.

Preferably, the pore diameter of the activated carbon filter screen on the left side is larger than that of the activated carbon filter screen on the right side.

Preferably, the brush is annular in shape and is in contact with the outer wall of the U-shaped pipe.

Preferably, the drive mechanism includes: the dustproof box is arranged at the center of the top end of the dust collection box; the two sliding sleeves are respectively arranged on the left side and the right side of the bottom end of the dustproof box; the sliding rod can be inserted into the inner cavity of the sliding sleeve in a vertically sliding manner, and the bottom end of the sliding rod is installed with the top end of the dust collecting cylinder; the motor is arranged at the bottom end of the inner cavity of the dustproof box; the gear is arranged at the output end of the motor; and the rack is connected to the outer wall of the gear in a meshed mode, and the bottom end of the rack is installed with the top end of the dust collecting cylinder.

Preferably, the sliding sleeve is vertically arranged on the dust-proof box.

Preferably, the gear is a gear with missing teeth.

Compared with the prior art, the beneficial effects of the utility model are that: this heat exchanger for power plant, it filters to granule impurity in the flue gas through the active carbon filter screen, actuating mechanism can frequently promote a dust collection section of thick bamboo, make a dust collection section of thick bamboo whereabouts and dust collection box collision, shake falling the adsorbed impurity on the active carbon filter screen, and utilize the collecting box to collect, make the flue gas be serpentine motion in the casing with the help of the baffle, make the flue gas fully be close to U type pipe, cool down the flue gas through the intraductal cold water that flows of U type, utilize hydraulic cylinder can drive the push pedal and remove about, and then make U type pipe remove about, get rid of impurity on the U type pipe through the brush, when using practically, can be to the flue gas edulcoration before the heat transfer, form the haze in avoiding floating the air, prevent that impurity from gathering in the casing and polluting the casing, it is clean frequent to reduce, use labour saving and time saving, and can regularly clean U type pipe, guarantee that U type pipe outer wall is clean, guarantee flue gas heat exchange efficiency.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front sectional view;

fig. 3 is an enlarged view at a.

In the figure: 1. the device comprises a base, 2, a filtering mechanism, 3, a heat exchange mechanism, 4, an air pipe, 5, a driving mechanism, 21, a dust collection box, 22, a dust collection cover, 23, a collection box, 24, a dust collection cylinder, 25, an activated carbon filter screen, 26, an ash bucket, 27, a baffle, 28, a first hose, 31, a support seat, 32, a shell, 33, an air inlet connecting pipe, 34, an air outlet connecting pipe, 35, a partition plate, 36, a cover body, 37, a hydraulic oil cylinder, 38, a push plate, 39, a multi-way pipe, 310, a second hose, 311, a U-shaped pipe, 312, a brush, 51, a dust prevention box, 52, a sliding sleeve, 53, a sliding rod, 54, a motor, 55, a gear, 56 and a rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a heat exchanger for a power plant comprises a base 1, a filtering mechanism 2, a heat exchange mechanism 3, an air pipe 4 and a driving mechanism 5, wherein the filtering mechanism 2 and the heat exchange mechanism 3 are respectively installed on the left side and the right side of the upper surface of the base 1, one end of the air pipe 4 is installed on the right side of the filtering mechanism 2, the other end of the air pipe is connected with the left side of the heat exchange mechanism 3, the driving mechanism 5 is installed at the top end of the filtering mechanism 2, and the driving mechanism 5 is used for lifting the filtering mechanism 2;

the filtering mechanism 2 comprises a dust collecting box 21, a dust collecting cover 22, a collecting box 23, a dust collecting cylinder 24, two activated carbon filter screens 25, an ash bucket 26, a baffle plate 27 and a first hose 28, wherein the dust collecting box 21 is arranged on the left side of the upper surface of the base 1 to provide a smoke filtering space, the right side of the dust collecting box 21 is connected with the end part of the air pipe 4, the dust collecting cover 22 is arranged at the bottom end of the dust collecting box 21 and is trapezoidal in shape, the collecting box 23 is arranged at the bottom end of the dust collecting cover 22 and is used for collecting impurities in smoke, the dust collecting cylinder 24 is arranged in the inner cavity of the dust collecting box 21, the number of the activated carbon filter screens 25 is two and is respectively arranged on the left side and the right side of the inner cavity of the dust collecting cylinder 24, the activated carbon filter screen 25 is used for filtering out particle impurities in the flue gas, the number of the ash hoppers 26 is four, every two ash hoppers are a group and are respectively arranged at the left side and the right side of the bottom end of the dust collection cylinder 24, the particle impurities are led into the collection box 23 through the ash hoppers 26, the two ash hoppers 26 are respectively arranged at the left side and the right side of the activated carbon filter screen 25, the number of the baffle plates 27 is two, the baffle plates are respectively detachably arranged at the left side and the right side of the dust collection cylinder 24, one end of the first hose 28 is arranged at the central position of the baffle plate 27, the other end of the first hose is arranged with the inner wall of the dust collection box 21, the up-and-down movement of the dust collection cylinder 24 is prevented from being blocked by the soft characteristic of the first hose 28, and the first hose 28 is communicated with the air pipe 4;

the heat exchange mechanism 3 comprises a supporting seat 31, a shell 32, an air inlet connecting pipe 33, an air outlet connecting pipe 34, a partition plate 35, a cover body 36, a hydraulic oil cylinder 37, a push plate 38, a plurality of channels 39, a second hose 310, a U-shaped pipe 311 and a brush 312, wherein the number of the supporting seats 31 is two, the two supporting seats are all arranged on the right side of the upper surface of the base 1, the shell 32 is arranged at the top end of the supporting seat 31, the air inlet connecting pipe 33 is arranged at the left end of the bottom of the shell 32, the air outlet connecting pipe 34 is arranged at the right end of the top of the shell 32, the number of the partition plates 35 is a plurality, the partition plates are arranged on the upper surface and the lower surface of the inner wall of the shell 32 at equal intervals from left to right, the partition plates 35 play a role in guiding the flow of flue gas, the flue gas can make the flue gas perform serpentine motion from left to right, the flue gas is close to the U-shaped pipe 311, the two cover bodies 36 are respectively arranged on the left side and the right side of the shell 32, the hydraulic oil cylinder 37 is installed at the right side center position of the cover body 36 on the right side and used for driving the push plate 38 to move left and right, the push plate 38 is installed at the output end of the hydraulic oil cylinder 37, the number of the multiple channels 39 is two, the two multiple channels are respectively installed at the upper end and the lower end of the push plate 38 and can enable cold water entering the multiple channels 39 to be divided and evenly flow into the multiple U-shaped tubes 311, the number of the second hoses 310 is two, one end of each second hose is installed on a main channel of the multiple channels 39, the other end of each second hose is connected with the outer wall of the cover body 36 on the right side, the number of the U-shaped tubes 311 is multiple, the U-shaped tubes 311 are installed on a branch channel of the multiple channels 39 from front to back, cold water circulating in the U-shaped tubes 311 can enable the U-shaped tubes 311 to be cooled, smoke is further cooled, the U-shaped tubes 311 penetrate through the outer wall of the partition plate 35, and the brushes 312 are installed on the right side wall of the partition plate 35 and used for brushing impurities on the U-shaped tubes 311.

Preferably, the pore size of the activated carbon filter 25 positioned on the left side is larger than that of the activated carbon filter 25 positioned on the right side, so that the two activated carbon filters 25 can successively filter the flue gas, thereby reducing the filtering load of the activated carbon filters 25.

Preferably, the brush 312 is in a ring shape and contacts with the outer wall of the U-shaped tube 311, so that the brush 312 brushes the outer wall of the U-shaped tube 311 in a ring shape, and the U-shaped tube 311 moves along with the movement of the U-shaped tube 311, thereby realizing the overall cleaning of the U-shaped tube 311.

Preferably, the driving mechanism 5 includes a dust cover 51, a sliding sleeve 52, two sliding rods 53, a motor 54, a gear 55 and a rack 56, the dust cover 51 is mounted at the top center of the dust box 21, the number of the sliding sleeves 52 is two, the sliding sleeves 52 are respectively mounted at the left and right sides of the bottom end of the dust cover 51, the dust collecting cylinder 24 is limited by the sliding sleeve 52 and the sliding rods 53, the sliding rods 53 are inserted into the inner cavity of the sliding sleeve 52 in a vertically sliding manner, the bottom end of the sliding sleeves is mounted at the top end of the dust collecting cylinder 24, the motor 54 is mounted at the bottom end of the inner cavity of the dust cover 51, the gear 55 is mounted at the output end of the motor 54, the rack 56 is driven by the gear 55 to lift the dust collecting cylinder 24, the rack 56 is engaged with the outer wall of the gear 55, and the bottom end is mounted at the top end of the dust collecting cylinder 24.

Preferably, a sliding sleeve 52 is vertically disposed on the dust box 51 to ensure the vertical movement of the dust collecting container 24.

Preferably, the gear 55 is a gear with missing teeth, so that the rack 56 of the gear 55 can be engaged with and disengaged from each other, and the rack 56 can naturally fall down after rising to a certain height, thereby moving the dust collecting cylinder 24 up and down.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Step one, the smoke tube is connected with the first hose 28 positioned on the left side, the smoke with the treatment can be introduced into the dust collecting cylinder 24, the air outlet connecting pipe 34 is connected with the desulfurization equipment through the smoke tube, and the two second hoses 310 are respectively connected with the liquid storage pipe and the return pipe of the water cooler through water pipes, so that cold water circulates in the U-shaped pipe 311;

secondly, filtering particle impurities in the flue gas through the activated carbon filter screen 25 to prevent the particle substances from forming haze, driving the gear 55 to rotate anticlockwise by the motor 54, driving the rack 56 to ascend by the gear 55 when the gear 55 is meshed with the rack 56, ascending the dust collection cylinder 24 under the limiting action of the sliding rod 53, and vibrating the dust collection cylinder 24 by falling under the self gravity when the gear 55 is separated from the rack 56 and colliding with the dust collection box 21 to generate vibration when the gear 55 is a gear with missing teeth, so that the dust on the activated carbon filter screen 25 is vibrated and enters the collection box 23 through the dust hopper 26 to filter the particle impurities in the flue gas;

step three, the purified flue gas enters the shell 32, and under the action of the partition plate 35, the flue gas flows in a snake shape from left to right, so that the flue gas is fully close to the U-shaped pipe 311, and the U-shaped pipe 311 cools the flue gas;

when sundries on the surface of the U-shaped pipe 311 need to be removed, the hydraulic oil cylinder 37 drives the push plate 38 to move left and right, so that the U-shaped pipe 311 moves left and right, the U-shaped pipe 311 rubs against the brush 312, and the brush 312 cleans the sundries on the surface of the U-shaped pipe 311 at the moment, and the effect of cooling the smoke gas by the U-shaped pipe 311 is guaranteed;

this device can be preferred to clear up granule impurity in the flue gas, prevents that impurity from piling up in the casing 32, avoids the particulate matter to form haze contaminated air, can also regularly clear up absorbent impurity on U type pipe 311, guarantees U type pipe 311 to the cooling effect of flue gas, and it is still laborsaving to save time, more does benefit to the popularization.

In the description of the present invention, it is to be understood that the terms "bottom", "one end", "middle", "other end", "upper", "top", "inner", "front", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "mounted," "engaged," "positioned," "plugged," and the like are to be construed broadly and include, for example, fixed connections, removable connections, or integral parts thereof; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

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 alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a heat exchanger is used in power plant, includes base (1), its characterized in that still includes:

the filtering mechanism (2) and the heat exchange mechanism (3) are respectively arranged on the left side and the right side of the upper surface of the base (1);

one end of the air pipe (4) is arranged on the right side of the filtering mechanism (2), and the other end of the air pipe is connected with the left side of the heat exchange mechanism (3);

the driving mechanism (5) is arranged at the top end of the filtering mechanism (2), and the driving mechanism (5) is used for lifting the filtering mechanism (2);

the filter mechanism (2) comprises:

the dust collection box (21) is arranged on the left side of the upper surface of the base (1), and the right side of the dust collection box (21) is connected with the end part of the air pipe (4);

a dust collection cover (22) which is installed at the bottom end of the dust collection box (21) and is trapezoidal in shape;

the collecting box (23) is arranged at the bottom end of the dust collection cover (22);

a dust collecting cylinder (24) placed in the inner cavity of the dust collecting box (21);

two active carbon filter screens (25) are respectively arranged at the left side and the right side of the inner cavity of the dust collecting cylinder (24);

four ash buckets (26) are arranged, each two ash buckets are a group and are respectively arranged at the left side and the right side of the bottom end of the dust collecting cylinder (24), and the two ash buckets (26) are respectively positioned at the left side and the right side of the activated carbon filter screen (25);

two baffles (27) which are respectively and detachably arranged at the left side and the right side of the dust collection cylinder (24);

a first hose (28), one end of which is arranged at the central position of the baffle plate (27), the other end of which is arranged on the inner wall of the dust collection box (21), and the first hose (28) is communicated with the air pipe (4);

the heat exchange mechanism (3) comprises:

the number of the supporting seats (31) is two, and the two supporting seats are all arranged on the right side of the upper surface of the base (1);

a housing (32) attached to the tip of the support base (31);

an air inlet connecting pipe (33) mounted at the left end of the bottom of the shell (32);

the air outlet connecting pipe (34) is arranged at the right end of the top of the shell (32);

the number of the partition plates (35) is a plurality, and the partition plates are arranged on the upper surface and the lower surface of the inner wall of the shell (32) at equal intervals from left to right;

two covers (36) respectively mounted on the left and right sides of the housing (32);

the hydraulic oil cylinder (37) is arranged at the right center of the cover body (36) positioned on the right side;

the push plate (38) is arranged at the output end of the hydraulic oil cylinder (37);

the number of the multiple channels (39) is two, and the multiple channels are respectively arranged at the upper end and the lower end of the push plate (38);

two second hoses (310), one end of each second hose is arranged on the main path of the multi-way (39), and the other end of each second hose is connected with the outer wall of the cover body (36) on the right side;

the number of the U-shaped pipes (311) is a plurality, the U-shaped pipes are arranged on the branch of the multi-way pipe (39) from front to back, and the U-shaped pipes (311) penetrate through the outer wall of the partition plate (35);

and a brush (312) mounted to a right side wall of the partition (35).

2. A heat exchanger for a power plant according to claim 1, wherein: the aperture of the activated carbon filter screen (25) positioned on the left side is larger than that of the activated carbon filter screen (25) positioned on the right side.

3. A heat exchanger for a power plant according to claim 1, wherein: the brush (312) is annular and is in contact with the outer wall of the U-shaped pipe (311).

4. A heat exchanger for a power plant according to claim 1, wherein: the drive mechanism (5) comprises:

a dust-proof box (51) mounted at the center of the top end of the dust-proof box (21);

the two sliding sleeves (52) are respectively arranged on the left side and the right side of the bottom end of the dust-proof box (51);

a sliding rod (53) which can be inserted into the inner cavity of the sliding sleeve (52) in a vertically sliding manner, and the bottom end of the sliding rod is installed with the top end of the dust collecting cylinder (24);

the motor (54) is arranged at the bottom end of the inner cavity of the dust-proof box (51);

a gear (55) mounted on an output end of the motor (54);

and the rack (56) is meshed and connected with the outer wall of the gear (55), and the bottom end of the rack is installed with the top end of the dust collection cylinder (24).

5. A heat exchanger for a power plant according to claim 4, wherein: the sliding sleeve (52) is vertically arranged on the dust-proof box (51).

6. A heat exchanger for a power plant according to claim 4, wherein: the gear (55) is a gear with missing teeth.

Images