CN113446619A - Cold air steam heating device - Google Patents
Cold air steam heating device Download PDFInfo
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- CN113446619A CN113446619A CN202110705453.4A CN202110705453A CN113446619A CN 113446619 A CN113446619 A CN 113446619A CN 202110705453 A CN202110705453 A CN 202110705453A CN 113446619 A CN113446619 A CN 113446619A
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- tube
- steam
- steam heating
- cold air
- pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0278—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of stacked distribution plates or perforated plates arranged over end plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/04—Arrangements for sealing elements into header boxes or end plates
- F28F9/06—Arrangements for sealing elements into header boxes or end plates by dismountable joints
- F28F9/12—Arrangements for sealing elements into header boxes or end plates by dismountable joints by flange-type connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices For Medical Bathing And Washing (AREA)
Abstract
The invention discloses a cold air steam heating device which comprises a pipe box, a steam heating device and a steam heating device, wherein the pipe box comprises a pipe box shell and a pipe box end socket connected to one end of the pipe box shell; and the ventilation unit is matched and connected with the pipe box and comprises a pipe bundle, a pipe bundle joint and a pipe bundle end socket, wherein the pipe bundle joint and the pipe bundle end socket are respectively connected to two ends of the pipe bundle. The cold air steam heating device provided by the invention can heat primary air fed into a boiler to ignite pulverized coal, so that the problem that the primary air is unstable due to low furnace temperature at the initial stage of ignition is avoided; the heating steam adopted by the invention adopts circulating steam in the use process of the boiler, so that the energy consumption is reduced, the energy is saved, the environment is protected, the pipe box and the pipe bundle are easy to disassemble, the part easy to scale inside is convenient to clean, and the service life of the device is prolonged.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a cold air steam heating device.
Background
At present, pulverized coal boilers are widely applied to thermal power plants, the reasons influencing pulverized coal combustion are various and are related to various factors such as fuel, a combustor, a hearth and boiler operation conditions, and at the initial ignition stage of the boiler of the thermal power plant, due to low furnace temperature, pulverized coal cannot be normally ignited after being put into the boiler, so that the boiler combustion is unstable, even deflagration phenomenon occurs, and the safe operation of a unit in starting is seriously influenced. Therefore, the rapid increase of the temperature of the pulverized coal is an effective way for solving unstable combustion in the initial ignition stage of the boiler, generally, when the pulverized coal is combusted, tertiary air is needed, the increase of the temperature of primary air can reduce ignition heat, the premise of the ignition position is provided, the pulverized coal can be stably combusted under the condition of low load, and the increase of the temperature of primary air is also a measure for improving the ignition speed and the ignition stability of the pulverized coal. However, the temperature of the primary air is too low, so that the temperature of the outlet of the hearth is too high, the temperature of a superheater reheater is too high, and the temperature of the primary air is too high, so that the pulverized coal can cause spontaneous combustion and even explosion in a pipeline when the pulverized coal with high volatile components is conveyed. Therefore, a cold air steam heating device is needed, which can heat primary air, improve combustion efficiency and save energy.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and the title of the invention of this application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems occurring in the conventional ignition process of a boiler of a thermal power plant.
Therefore, the invention aims to solve the problem that a cold air steam heating device is needed to solve the problem of unstable combustion in the initial ignition stage of the existing thermal power plant boiler.
In order to solve the technical problems, the invention provides the following technical scheme: a cold air steam heating device comprises a pipe box, a steam heating device and a steam heating device, wherein the pipe box comprises a pipe box shell and a pipe box end socket connected to one end of the pipe box shell; and the ventilation unit is matched and connected with the pipe box and comprises a pipe bundle, a pipe bundle joint and a pipe bundle end socket, wherein the pipe bundle joint and the pipe bundle end socket are respectively connected to two ends of the pipe bundle.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the tube box shell is of a hollow cylindrical structure, two ends of the tube box shell are open, two ends of the tube box shell are divided into an inlet end and an outlet end and a closed end, the diameter of the closed end is larger than that of the inlet end and the outlet end, the tube box end socket is of a hollow hemispherical structure, and the closed end is connected with the tube box end socket through a flange.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the side wall of the inlet and outlet end is also provided with a steam inlet and a steam outlet, and the steam inlet and the steam outlet are positioned at two different ends on the same axis.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the tube bundle connector comprises a connector end and a steam guide end, the tube bundle connector is connected with the inlet and outlet end through a flange, the connector end is located outside the tube box shell, and the steam guide end is located in the tube box shell.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the joint end is hollow cylinder structure, just be equipped with first baffle in the joint end and divide into two not communicating air inlet room and air outlet room with joint end inner space, air inlet room and air outlet room lateral wall still are equipped with air intake, air outlet respectively.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the air inlet chamber and the air outlet chamber face one side of the steam guide end, a plurality of vent holes are uniformly distributed in the air inlet chamber and the air outlet chamber, the pipe bundle is a plurality of straight pipes, one end of the pipe bundle is connected with the vent holes, the steam guide end is further provided with a second partition plate connected with the joint end, and the second partition plate divides the pipe bundle into an air inlet pipe and an air outlet pipe.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: still evenly be equipped with a plurality of first guide plates and second guide plate on the second baffle, first guide plate and second guide plate cup joint on the tube bank and crisscross the setting, the side of first guide plate and second guide plate all with the laminating of pipe case casing, first guide plate with be equipped with the breach between the pipe case casing, the second guide plate with be equipped with the breach between the second baffle.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the tube bank head includes spherical head and pipe shrouding, the blind end inner wall of pipe case casing is equipped with a plurality of first screw holes, the edge of spherical head one end is equipped with a plurality of second screw holes, the edge of pipe shrouding is equipped with a plurality of third screw holes, first screw hole, second screw hole, third screw hole all are even circumference distribution, first screw hole, second screw hole, third screw hole cooperation are connected, the pipe shrouding is located spherical head with between the first screw hole.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the spherical end socket is hemispherical, a plurality of arc-shaped channels which are not communicated and are uniformly distributed are arranged in the spherical end socket, the arc-shaped channels are communicated with the tube bundle, and the outer side wall of the spherical end socket is of a uniform grid-shaped structure.
As a preferable aspect of the cold air steam heating apparatus of the present invention, wherein: the tube sealing plate is sleeved on the tube bundle, and the middle part of the tube sealing plate is also connected with the second partition plate.
The invention has the beneficial effects that: the cold air steam heating device provided by the invention can heat primary air fed into a boiler to ignite pulverized coal, so that the problem that the primary air is unstable due to low furnace temperature at the initial stage of ignition is avoided; the heating steam adopted by the invention adopts circulating steam in the use process of the boiler, so that the energy consumption is reduced, the energy is saved, the environment is protected, the pipe box and the pipe bundle are easy to disassemble, the part easy to scale inside is convenient to clean, and the service life of the device is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
fig. 1 is an overall assembly view of the cold air steam heating apparatus.
Fig. 2 is a view showing a structure of a ventilation unit of the cold air steam heating apparatus.
Fig. 3 is a structure diagram of a tube bundle end socket of the cold air steam heating device.
Fig. 4 is a sectional structure view of the cold air steam heating apparatus.
Fig. 5 is a schematic view of the shell-side fluid flow of the cold-air steam heating device.
Fig. 6 is a schematic flow diagram of tube-side fluid of the cold-air steam heating device.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1 to 6, a first embodiment of the present invention provides a cold air steam heating device, which can heat primary air for igniting pulverized coal and provide a way for steam circulation.
The cool air steam heating apparatus includes a header 100 for providing a steam flow path, and a ventilation unit 200 for passing primary air, a portion of the ventilation unit 200 being located inside the header 100 so that steam is heat-exchanged with the primary air. The channel 100 comprises a channel shell 101 and a channel head 102 connected to one end of the channel shell 101; the ventilation unit 200, which is coupled to the tube box 100, includes a tube bundle 201, and a tube bundle connector 202 and a tube bundle head 203 respectively connected to two ends of the tube bundle 201.
Specifically, the tube box shell 101 is a hollow cylindrical structure and has two open ends, the two open ends of the tube box shell 101 are an inlet end 101a and a closed end 101b, the diameter of the closed end 101b is larger than that of the inlet end 101a, the tube box end enclosure 102 is a hollow hemispherical structure, and the closed end 101b is connected with the tube box end enclosure 102 through a flange. The side wall of the inlet and outlet 101a is also provided with a steam inlet 101a-1 and a steam outlet 101a-2, and the steam inlet 101a-1 and the steam outlet 101a-2 are positioned at two different ends on the same axis. Steam enters from the steam inlet 101a-1, and is exhausted from the steam outlet 101a-1 after going through a cycle in the tube box shell 101, and when the steam passes through the closed end 101b, the steam enters from a smaller tube diameter to a larger tube diameter, the flow velocity of the steam is correspondingly slowed down, and the flow time of the steam in the tube box end enclosure 102 is also prolonged.
Further, the tube bundle connector 202 includes a connector end 202a and a steam guiding end 202b, the tube bundle connector 202 is flanged with the inlet and outlet end 101a, the connector end 202a is located outside the tube box casing 101, and the steam guiding end 202b is located inside the tube box casing 101. When the tube bundle connector 202 is connected to the tube box housing 101, both ends of the tube box housing 101 are closed.
Still further, the joint end 202a is a hollow cylinder structure, and a first partition plate 202a-1 is disposed in the joint end 202a to divide the inner space of the joint end 202a into an air inlet chamber 202a-2 and an air outlet chamber 202a-3 which are not communicated with each other, and the side walls of the air inlet chamber 202a-2 and the air outlet chamber 202a-3 are further respectively provided with an air inlet 202a-4 and an air outlet 202 a-5. A plurality of vent holes 202a-6 are uniformly distributed on one sides of the air inlet chamber 202a-2 and the air outlet chamber 202a-3 facing the steam guide end 202b, the tube bundle 201 is a plurality of straight tubes, one end of the tube bundle 201 is connected with the vent holes 202a-6, the steam guide end 202b is also provided with a second partition plate 202b-1 connected with the joint end 202a, and the second partition plate 202b-1 divides the tube bundle 201 into an air inlet tube 201a and an air outlet tube 201 b. Air enters the air inlet chamber 202a-2 from the air inlet 202a-4 and enters the air inlet pipe 201a from the air vent 202a-6 under the blocking of the first partition plate 202 a-1; similarly, air to be discharged enters the air outlet chamber 202a-3 from the air outlet pipe 201b through the air vents 202a-6, and then flows out from the air outlet 202a-5 to enter the boiler.
The second baffle 202b-1 is also uniformly provided with a plurality of first guide plates 202b-2 and second guide plates 202b-3, the first guide plates 202b-2 and the second guide plates 202b-3 are sleeved on the tube bundle 201 and are arranged in a staggered manner, the side edges of the first guide plates 202b-2 and the second guide plates 202b-3 are both attached to the tube box shell 101, a gap is arranged between the first guide plates 202b-2 and the tube box shell 101, and a gap is arranged between the second guide plates 202b-3 and the second baffle 202 b-1. Referring to fig. 5, the first guide plates 202b-2 and the second guide plates 202b-3 are arranged in a staggered manner, and the positions of the gaps are different, so that steam flows in a zigzag manner between the guide plates, the steam can be in full contact with the tube bundle 201, the time of heat exchange is prolonged, and the improvement of primary air temperature is facilitated.
In addition, referring to fig. 2 to 4, the tube bundle end socket 203 comprises a spherical end socket 203a and a tube sealing plate 203b, the inner wall of the closed end 101b of the tube box shell 101 is provided with a plurality of first threaded holes 101b-2, the edge of one end of the spherical end socket 203a is provided with a plurality of second threaded holes 203a-1, the edge of the tube sealing plate 203b is provided with a plurality of third threaded holes 203b-1, the first threaded holes 101b-2, the second threaded holes 203a-1 and the third threaded holes 203b-1 are uniformly and circumferentially distributed, the first threaded holes 101b-2, the second threaded holes 203a-1 and the third threaded holes 203b-1 are connected in a matching manner, and each threaded hole is provided with a certain gap so that steam can pass through the gap. The tube sealing plate 203b is positioned between the spherical end socket and the first threaded hole 101b-2, two surfaces of the tube sealing plate 203b are provided with convex structures, one surface facing the tube bundle 201 is a circular convex, and the circular convex structures are embedded between the first threaded holes 101b-2 to form sealing; the other side is provided with a plurality of strip-shaped bulges, the shapes of the strip-shaped bulges are consistent with the shape of the hole reserved on the round surface of the spherical seal head 203a, when the spherical seal head 203a is connected with the pipe seal plate 203b, the strip-shaped bulges are embedded on the hole on the round surface of the spherical seal head 203a, and one end of the pipe bundle 201 is completely connected in the strip-shaped bulges to form sealing. The tube sealing plate 203b is sleeved on the tube bundle 201, the middle of the tube sealing plate 203b is connected with the second partition plate 202b-1, grooves at two ends are further formed in the inner wall of the closed end 101b of the tube box shell 101, and the edge of the second partition plate 202b-1 is located in the groove in the inner wall of the closed end 101b, so that steam is always divided into two parts during circulation and can completely enter the tube box end enclosure 102.
Furthermore, the spherical head 203a is hemispherical, the inner part of the spherical head 203a is provided with a plurality of arc-shaped channels 203a which are not communicated and are uniformly distributed, the arc-shaped channels 203a are communicated with the tube bundle 201, the outer side wall of the spherical head 203a is in a uniform grid-shaped structure, when steam enters the tube box head 102, the steam is diffused among the grid-shaped structures of the spherical head 203a under the blocking action of the tube box head 102, so that the steam and the spherical head 203a can fully perform heat exchange, and because the spherical head 203a is separated, the air entering the spherical head 203a from the tube bundle 201 is relatively less, and the heat exchange can fully operate by increasing the contact area and reducing the heat exchange medium.
In this embodiment, since each component is a detachable structure, when the tube box 100 or the tube bundle 201 is fouled due to long use, the relevant component can be detached for replacement and cleaning. In addition, both ends and the middle part of tube bank 201 are all fixed under the effect of guide plate and head, and when the device was operated, can reduce the holistic vibration of tube bank 201 to reduce the noise that the vibration produced.
The cold air steam heating device provided by the invention has the advantages of simple and clear principle, easiness in operation, energy conservation, environmental friendliness and the like, can be used for heating primary air fed into a boiler to ignite pulverized coal, and avoids the problem that the primary air is low in furnace temperature at the initial ignition stage and easy to burn unstably; the heating steam adopted by the invention adopts circulating steam in the use process of the boiler, so that the energy consumption is reduced, the energy is saved, the environment is protected, the pipe box and the pipe bundle are easy to disassemble, the part easy to scale inside is convenient to clean, and the service life of the device is prolonged.
It is important to note that the construction and arrangement of the present application as shown in the various exemplary embodiments is illustrative only. Although only a few embodiments have been described in detail in this disclosure, those skilled in the art who review this disclosure will readily appreciate that many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters (e.g., temperatures, pressures, etc.), mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter recited in this application. For example, elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any means-plus-function clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present inventions. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that nevertheless fall within the scope of the appended claims.
Moreover, in an effort to provide a concise description of the exemplary embodiments, all features of an actual implementation may not be described (i.e., those unrelated to the presently contemplated best mode of carrying out the invention, or those unrelated to enabling the invention).
It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure, without undue experimentation.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. A cold air steam heating device is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the channel (100) comprises a channel shell (101) and a channel end enclosure (102) connected to one end of the channel shell (101); and the number of the first and second groups,
and the ventilation unit (200) is matched and connected with the channel box (100) and comprises a tube bundle (201) and a tube bundle joint (202) and a tube bundle end socket (203) which are respectively connected to the two ends of the tube bundle (201).
2. The cold air steam heating apparatus of claim 1, wherein: the tube box is characterized in that the tube box shell (101) is of a hollow cylindrical structure and is provided with two open ends, the two open ends of the tube box shell (101) are divided into an inlet end (101a) and a closed end (101b), the diameter of the closed end (101b) is larger than that of the inlet end (101a), the tube box end socket (102) is of a hollow hemispherical structure, and the closed end (101b) is connected with the tube box end socket (102) through a flange.
3. The cold air steam heating apparatus of claim 2, wherein: the side wall of the inlet and outlet end (101a) is also provided with a steam inlet (101a-1) and a steam outlet (101a-2), and the steam inlet (101a-1) and the steam outlet (101a-2) are positioned at two different ends of the same axis.
4. The cold air steam heating apparatus of claim 3, wherein: the tube bundle joint (202) comprises a joint end (202a) and a steam guide end (202b), the tube bundle joint (202) is in flange connection with the inlet and outlet end (101a), the joint end (202a) is located outside the tube box shell (101), and the steam guide end (202b) is located inside the tube box shell (101).
5. The cold air steam heating apparatus of claim 4, wherein: the joint end (202a) is of a hollow cylindrical structure, a first partition plate (202a-1) is arranged in the joint end (202a) to divide the inner space of the joint end (202a) into an air inlet chamber (202a-2) and an air outlet chamber (202a-3) which are not communicated, and the side walls of the air inlet chamber (202a-2) and the air outlet chamber (202a-3) are respectively provided with an air inlet (202a-4) and an air outlet (202 a-5).
6. The cold air steam heating apparatus of claim 5, wherein: the air inlet chamber (202a-2) and the air outlet chamber (202a-3) are provided with a plurality of vent holes (202a-6) facing one side of the steam guide end (202b), the pipe bundle (201) is a plurality of straight pipes, one end of the pipe bundle (201) is connected with the vent holes (202a-6), the steam guide end (202b) is further provided with a second partition plate (202b-1) connected with the joint end (202a), and the second partition plate (202b-1) divides the pipe bundle (201) into an air inlet pipe (201a) and an air outlet pipe (201 b).
7. The cold air steam heating apparatus of claim 6, wherein: the second baffle plate (202b-1) is also uniformly provided with a plurality of first guide plates (202b-2) and second guide plates (202b-3), the first guide plates (202b-2) and the second guide plates (202b-3) are sleeved on the tube bundle (201) and are arranged in a staggered mode, the side edges of the first guide plates (202b-2) and the second guide plates (202b-3) are attached to the tube box shell (101), gaps are formed between the first guide plates (202b-2) and the tube box shell (101), and gaps are formed between the second guide plates (202b-3) and the second baffle plate (202 b-1).
8. The cold air steam heating apparatus of claim 7, wherein: the tube bundle end socket (203) comprises a spherical end socket (203a) and a tube sealing plate (203b), the inner wall of the closed end (101b) of the tube box shell (101) is provided with a plurality of first threaded holes (101b-2), the edge of one end of the spherical seal head (203a) is provided with a plurality of second threaded holes (203a-1), the edge of the tube sealing plate (203b) is provided with a plurality of third threaded holes (203b-1), the first threaded holes (101b-2), the second threaded holes (203a-1) and the third threaded holes (203b-1) are uniformly and circumferentially distributed, the first threaded hole (101b-2), the second threaded hole (203a-1) and the third threaded hole (203b-1) are connected in a matching way, the tube closing plate (203b) is located between the spherical sealing head and the first threaded hole (101 b-2).
9. The cold air steam heating apparatus of claim 8, wherein: the spherical end socket (203a) is hemispherical, a plurality of non-communicated arc-shaped channels (203a-1) are uniformly distributed in the spherical end socket (203a), the arc-shaped channels (203a-1) are communicated with the tube bundle (201), and the outer side wall of the spherical end socket (203a) is of a uniform toothed structure.
10. The cold air steam heating apparatus according to claim 8 or 9, wherein: the tube sealing plate (203b) is sleeved on the tube bundle (201), and the middle part of the tube sealing plate (203b) is also connected with the second clapboard (202 b-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705453.4A CN113446619A (en) | 2021-06-24 | 2021-06-24 | Cold air steam heating device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110705453.4A CN113446619A (en) | 2021-06-24 | 2021-06-24 | Cold air steam heating device |
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| CN113446619A true CN113446619A (en) | 2021-09-28 |
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| CN202110705453.4A Pending CN113446619A (en) | 2021-06-24 | 2021-06-24 | Cold air steam heating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114688909A (en) * | 2022-02-28 | 2022-07-01 | 呼伦贝尔安泰热电有限责任公司满洲里热电厂 | Heating network heater |
Citations (18)
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| CN114688909A (en) * | 2022-02-28 | 2022-07-01 | 呼伦贝尔安泰热电有限责任公司满洲里热电厂 | Heating network heater |
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