CN210135277U - Air flow switching valve group - Google Patents
Air flow switching valve group Download PDFInfo
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- CN210135277U CN210135277U CN201920758855.9U CN201920758855U CN210135277U CN 210135277 U CN210135277 U CN 210135277U CN 201920758855 U CN201920758855 U CN 201920758855U CN 210135277 U CN210135277 U CN 210135277U
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- valve group
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Abstract
The utility model provides an air current switches valves, relates to heat accumulation formula and burns burning furnace apparatus technical field, and including the valves, the valves is established ties and is equipped with at least three, and all is equipped with inlet channel and outlet channel on every valves. The utility model solves the problem that the valve set in the traditional technology can not process the waste gas after air inlet; multi-directional stress is borne, so that the valve bank is easy to change; the valve group application scenario is limited; the maintenance requires the loading and unloading of the whole machine; and the problem that the welding heat is easy to cause deformation during processing.
Description
Technical Field
The utility model relates to a heat accumulation formula burns burning furnace apparatus technical field, concretely relates to air current switching valves.
Background
With the development of industry, environmental problems become more prominent, and environmental pollution is a difficult problem to be solved. The air pollution is closely related to people's life, the air pollution mainly comprises organic waste gas pollution and inorganic waste gas pollution, and in the organic waste gas treatment technology, the incineration method is one of the most direct and effective treatment technologies. In the practical application process, heat accumulating type incineration (RTO) and heat accumulating type catalytic combustion (RCO) technologies are mostly adopted, and compared with other incineration technologies, the heat accumulating type incinerator can effectively recover heat, and the heat recovery efficiency can reach more than 95%.
The operation principle of the RTO and RCO of the fixed bed type (two or more beds) is that waste gas enters a regenerator through a pipeline and a valve bank under the action of a fan, the temperature is further increased after the waste gas enters a combustion chamber after being preheated and increased by the regenerator, organic matters are decomposed into water and carbon dioxide and release heat under a high-temperature environment, the treated gas is discharged after the heat is recovered by other regenerators, the waste gas alternately enters and exits different regenerators through the valve bank in the process, namely, the gas is heated when entering the regenerators, and is cooled during the discharge, so that the purposes of purifying the organic waste gas and recovering the heat to save energy are achieved. The quality of the valve block performance plays a crucial role.
Regarding the design of the valve bank, the valve bank is realized by adopting butterfly valves (respectively at the air inlet pipeline and the air outlet pipeline of each regenerator) in the prior art, but when the large air volume of gas is encountered, the required valve bank external diameter is very large, the cost is high, the air leakage volume is increased, the treatment efficiency of the incinerator is reduced, and the pipeline arrangement is complex and occupies more space.
In the prior art, the lower end of the incinerator body is in a transverse push-pull design and is integrated with the incinerator body, however, after the valve bank is too large, the self weight of the valve bank can form downward gravity, so that the valve rod and the cylinder not only need to receive transverse push-pull force, but also can bear downward valve plate gravity.
Push-pull type about still having the valves adoption for the life who avoids the too big influence valves of gravity among the prior art, install it in the furnace body lower part, nevertheless there is the monomer equipment too high like this, transportation and cost of manufacture increase, and this kind of design of making the valve plate with the furnace body as an organic whole, burn the water that burning furnace lower part can the condensation production sometimes and get into the valve body and cause the valve body life-span to reduce and maintainer need get into furnace body inside maintenance when overhauing, belong to the confined space operation, working strength is big and have shortcomings such as certain potential safety hazard.
The patent of the invention with the application number of CN2018111639341 disclosed by the intellectual property office of China comprises a hollow cavity, wherein a first vent hole and a second vent hole are formed in the upper end of the cavity, a third vent hole is formed between the first vent hole and the second vent hole, a fourth vent hole is formed in the lower end of a central control cavity, a first piston and a second piston are arranged inside the central control cavity, the first piston and the second piston are respectively used for controlling air intake and air exhaust of the first vent hole and the second vent hole, and the first piston and the second piston are respectively connected with an executing mechanism. The application provides a brand-new two box RTO valves adopts a valves and an executor to replace 4 current valves mode of switching over the cooperation each other, practices thrift the cost, reduces the fault rate simultaneously, and this scheme still exists following not enough after the analysis:
first, the valve set structure in this scheme can realize the functions of air inlet and outlet and separate installation of the incinerator and the switching valve, but the valve plate moves in a transverse direction, so that the valve rod and the cylinder are subjected to not only transverse push-pull force but also downward valve plate gravity.
Second, this solution is limited to a two-chamber configuration only, and is very limited in the amount of air to be processed.
Thirdly, the scheme is not provided with a purging function, untreated waste gas can remain in the heat accumulator after the air inlet of a heat accumulator is finished, and the untreated waste gas is directly discharged when the heat accumulator is used as an air outlet chamber, so that the treatment efficiency of the incineration equipment is reduced.
Fourth, the maintainer need regularly overhaul the valves to guarantee the stability of work goes on, but the valves in this scheme when being in the trouble, need dismantle whole valves, wherein loading and unloading step is loaded down with trivial details, has increaseed the labour, has reduced work efficiency.
Fifthly, when the device in the scheme is manufactured by welding and mounting, the phenomenon that part of the device is deformed due to welding heat is easy to occur.
Sixth, the heat accumulation formula incineration equipment can meet the condition of high temperature flue gas when admitting air and giving vent to anger, all can lead to exhaust gas temperature to be higher than the normal atmospheric temperature far away when the gas inlet temperature is too high and the exhaust gas concentration who handles is too high, leads to the inside and outside difference in temperature of valves big, makes the emergence of the structure of valves warp easily, burns burning furnace treatment effeciency to life and heat accumulation formula and brings the influence, and valves outer wall high temperature brings the potential safety hazard to operating personnel easily moreover.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides an airflow switching valve group, which is used for solving the problem that the valve group in the traditional technology can not process the waste gas after air inlet; multi-directional stress is borne, so that the valve bank is easy to change; the valve group application scenario is limited; the maintenance requires the loading and unloading of the whole machine; and the heat of welding easily causes deformation.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides an air current switches valves, includes the valves, the valves is established ties and is equipped with at least three, and all is equipped with inlet channel and outlet channel on every valves.
As an improved scheme, the air inlet channel is communicated with the air outlet channel through an air pipe.
As an improved scheme, access holes are formed in the air inlet channel and the air outlet channel.
As an improved scheme, the air outlet channel is also provided with a purging opening.
As an improved scheme, an air inlet and a hearth connecting port are further arranged on the air inlet channel.
As an improved scheme, an air outlet is further arranged on the air outlet channel.
As an improved scheme, the air inlet channel and the air outlet channel both comprise an upper air exchange cavity and a lower air exchange cavity, and a valve plate assembly for controlling on-off is arranged between the upper air exchange cavity and the lower air exchange cavity.
Compared with the prior art, the beneficial effects of the utility model are that:
the valve is assembled by adopting independent valve group units, so that the problems of air leakage and air leakage are well avoided; the incinerator is suitable for incinerators with different regenerative chamber numbers; the valve group is formed by connecting bolts, and no welding seam deforms due to welding; the whole installation is simple, and switches among the valve groups are not affected; the switching valve group is separated from the incinerator body, so that the processing and the transportation are convenient; the unit module and standardization of the equipment can better reduce the cost; the stress is more single, and the valve plate overcomes the problems of longitudinal and transverse stress in the moving process; the high-temperature-resistant sealant well avoids unnecessary deformation caused by welding; the valve plate is driven by the cylinder to vertically move up and down, and the valve rod is only subjected to vertical force from a stress angle analysis, so that the abrasion of the valve rod due to lateral force is reduced; the switching valve group is separated from the furnace body, and the two sides of the valve body are respectively provided with an access hole, so that people can carry out maintenance outside the device during maintenance; the whole valve bank can complete the air inlet, air outlet and purging work of the valve bank by arranging the purging port, and the pipe arrangement is simple; the combination of a plurality of valve group units can well adapt to the treatment project of the waste gas with large air volume; the whole switching valve group is formed by machining plate folded plates, and is simple to manufacture, low in cost and convenient and fast to install; the switching valve group is provided with a blowing butt joint port to enable the air inlet, the air outlet and the blowing to be integrated, equipment is processed and manufactured in a modularized combination mode, the structure is simple, the assembly is convenient, the sealing performance is strong, the unidirectional stress abrasion is small, the service life is long, and the switching valve group is applicable to incinerators with two chambers, three chambers and more chambers; the stability of the working operation is ensured; the production cost is reduced; the adjustment is extremely convenient, and time and labor are saved; the structure is simple; the labor force of workers is reduced; the structure is simple, and the service life is long; the structure is simple, and the work is stable; simple and convenient operation and control, easy large-scale manufacture and installation and wide application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side view of the present invention;
fig. 3 is a schematic top view of the present invention;
fig. 4 is a schematic view of the installation state of the present invention;
in the figure: 1-an air outlet channel; 2-an intake passage; 3, a maintenance port; 4-a pipeline; 5-bolt; 6-a base; 7-a cylinder; 8-a purge port; 9-a hearth connecting port; 10-a sealing strip; 11-silica gel plate; 12-a connecting plate; 13-a connecting rod; 14-insulating layer; 15-a guide bar; 16-a valve plate; 17-air pipe; 18-air outlet; 19-an air inlet; 20-upper ventilation cavity; 21-lower ventilation cavity; 22-a first valve group; 23-a second valve group; 24-a third valve group; 25-heat accumulating type incineration equipment.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 3, an airflow switching valve set includes at least three valve sets connected in series, and each valve set is provided with an inlet channel 2 and an outlet channel 1.
The air inlet channel 2 is communicated with the air outlet channel 1 through an air pipe 17.
And the air inlet channel 2 and the air outlet channel 1 are both provided with access holes 3.
The air outlet channel 1 is also provided with a purging port 8, wherein the purging port 8 is a purging method connecting port.
The air inlet channel 2 is also provided with an air inlet 19 and a hearth connecting port 9, wherein the hearth connecting port is used for being connected with the heat accumulating type incineration equipment.
The air outlet channel 1 is also provided with an air outlet 18.
The air inlet channel 2 and the air outlet channel 1 both comprise an upper air exchange cavity 20 and a lower air exchange cavity 21, and a valve plate 16 for controlling on-off is arranged between the upper air exchange cavity 20 and the lower air exchange cavity 21.
The three valve sets are a first valve set 22, a second valve set 23 and a third valve set 24 in sequence, and the three valve sets are alternately matched in sequence to perform air inlet, air outlet and blowing actions.
When the first valve set 22 performs air inlet operation, the second valve set 23 performs air outlet operation, and the third valve set 24 performs purging operation; when the second valve set 23 performs air inlet operation, the third valve set 24 performs air outlet operation, and the first valve set 22 performs purging operation; when the third valve set 24 performs the air inlet operation, the first valve set 22 performs the air outlet operation, and the second valve set 23 performs the purging operation, which are sequentially and cyclically repeated.
When the valve group performs air inlet action, the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air inlet channel 2 are communicated, and the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air outlet channel 1 are blocked; when the valve group performs air outlet action, the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air inlet channel 2 are blocked, and the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air outlet channel 1 are communicated; when the valve group performs the purging action, the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air inlet channel 2 are blocked, and the upper air exchange cavity 20 and the lower air exchange cavity 21 of the air outlet channel 1 are communicated.
The air inlet channel 2 and the air outlet channel 1 can be used in an interchangeable manner, the air inlet channel 2 and the air outlet channel 1 are formed by splicing folded plates after punching metal plates through bolts 5, the valve bodies are made of heat-insulating materials to form a heat-insulating layer 14, the exterior of the valve bodies is coated by metal sheets, and heat-insulating cotton can prevent metal deformation caused by overlarge temperature difference between the inside and the outside of the valve group, can influence the service life of the valve group and increase the leakage rate of the valve (the treatment efficiency is reduced), and can prevent the high temperature of the valve group from; the thin plate is coated on the first side, the appearance is attractive, and the thin plate can further protect the heat-preservation cotton and prolong the service life.
The air inlet channel 2 and the air outlet channel 1 are connected into a whole through an internal air pipe 17, and the internal air pipe 17 is manufactured by folding edges of a metal plate.
The valve plate assembly comprises a cylinder, a valve plate 16, a connecting plate 12, a connecting rod 13, a guide rod 15, a bolt 5 silica gel plate 11 and other sealing materials, wherein a sealing strip 10 is further mounted on the valve plate 16.
The cylinder 7 is connected with the valve plate 16 through the cylinder 7 base 6, the guide rod is a telescopic rod of the cylinder, the guide rod is coaxially mounted with the connecting rod, and the valve plate is mounted on the connecting rod.
The connecting rod plays the effect of stabilizing the valve plate, can prevent that the direction of motion of valve plate is steady, better big amount of wind of handling.
When the supporting burning furnace that handles the big amount of wind burns, the valve plate need be done very big or the stroke increases, and the unstability can appear in the in-process of valve plate up-and-down motion, restriction valve plate that can be better through the connecting rod at the ascending motion of single side (or set for the direction), and this is also the utility model discloses can more handle the gaseous advantage of big amount of wind.
The gas outlet channel 1 and the gas inlet channel 2 are respectively provided with an access hole 3, the gas outlet channel 1 is provided with a purging hole 8 and a gas outlet 18, and the gas inlet channel 2 is provided with a gas inlet 19 and a hearth connecting hole 9.
The valve group is connected with the valve group through a pipeline 4, and the pipeline 4 is processed through a metal plate.
The air cylinder 7 drives the valve plate 16 to move up and down to realize the switching of air.
The working principle of the scheme is as follows:
the switching valve group comprises three switching valves, namely a first valve group 22, a second valve group 23 and a third valve group 24, each valve group comprises an air inlet channel 2 and an air outlet channel 1, when the first valve group 22 is used for air inlet, an air cylinder 7 of the air inlet channel 2 retracts, the air cylinder 7 of the air outlet channel 1 extends out, and air enters the furnace body through the first valve group 22 through a furnace connecting port 9;
at the moment, the second valve group 23 is used for discharging gas, the cylinder 7 of the gas inlet channel 2 extends out, the cylinder 7 of the gas outlet channel 1 retracts, and the gas is discharged from the furnace body through the second valve group 23 and then discharged through the internal air pipe 17;
meanwhile, the third valve group 24 is used for purging, the air cylinder 7 of the air inlet channel 2 extends out, the air cylinder 7 of the air outlet channel 1 retracts, and clean air enters the furnace body through the third valve group 24 to purge the heat accumulating type, and the processes are carried out synchronously.
After a period of time, the second valve group 23 becomes admit air, the running state is the withdrawal of the air inlet channel 2 cylinder 7, the air outlet channel 1 cylinder 7 stretches out, gas enters the furnace body through the second valve group 23 through the hearth connecting port 9, the third valve group 24 is for giving vent to anger at this moment, the air inlet channel 2 cylinder 7 stretches out, the air outlet channel 1 cylinder 7 retracts, gas is got rid of from the furnace body through the third valve group 24, the inside tuber pipe 17 of rethread is discharged away, simultaneously the first valve group 22 is for sweeping, the air inlet channel 2 cylinder 7 stretches out, the air outlet channel 1 cylinder 7 retracts back, clean air enters the furnace body through the valve group A and sweeps the heat accumulation formula.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (6)
1. An air flow switching valve group is characterized in that: including the valves, the valves are established ties and are equipped with at least three, and all are equipped with inlet channel (2) and outlet channel (1) on every valves, inlet channel (2) with outlet channel (1) is linked together through tuber pipe (17).
2. An air flow switching valve assembly as claimed in claim 1, wherein: and the air inlet channel (2) and the air outlet channel (1) are provided with access holes (3).
3. An air flow switching valve assembly as claimed in claim 1, wherein: the air outlet channel (1) is also provided with a purging opening (8).
4. An air flow switching valve assembly as claimed in claim 1, wherein: and the air inlet channel (2) is also provided with an air inlet (19) and a hearth connecting port (9).
5. An air flow switching valve assembly as claimed in claim 1, wherein: an air outlet (18) is also arranged on the air outlet channel (1).
6. An air flow switching valve assembly as claimed in claim 1, wherein: the air inlet channel (2) and the air outlet channel (1) comprise an upper air exchange cavity (20) and a lower air exchange cavity (21), and a valve plate (16) used for controlling on-off is arranged between the upper air exchange cavity (20) and the lower air exchange cavity (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758855.9U CN210135277U (en) | 2019-05-24 | 2019-05-24 | Air flow switching valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920758855.9U CN210135277U (en) | 2019-05-24 | 2019-05-24 | Air flow switching valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210135277U true CN210135277U (en) | 2020-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920758855.9U Expired - Fee Related CN210135277U (en) | 2019-05-24 | 2019-05-24 | Air flow switching valve group |
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| CN (1) | CN210135277U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107716A (en) * | 2019-05-24 | 2019-08-09 | 山东海美侬环保科技有限公司 | A kind of air-flow switching valve group and control method |
-
2019
- 2019-05-24 CN CN201920758855.9U patent/CN210135277U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107716A (en) * | 2019-05-24 | 2019-08-09 | 山东海美侬环保科技有限公司 | A kind of air-flow switching valve group and control method |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200310 Termination date: 20210524 |
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| CF01 | Termination of patent right due to non-payment of annual fee |