CN208472854U - A kind of constant pressure water supply system of fixed frequency pump - Google Patents
A kind of constant pressure water supply system of fixed frequency pump Download PDFInfo
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- CN208472854U CN208472854U CN201820959521.3U CN201820959521U CN208472854U CN 208472854 U CN208472854 U CN 208472854U CN 201820959521 U CN201820959521 U CN 201820959521U CN 208472854 U CN208472854 U CN 208472854U
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Abstract
The utility model belongs to converter steeling technology field more particularly to a kind of constant pressure water supply system of fixed frequency pump.The utility model passes through self-complementary waterpipe, automatic water supplement valve group, water tank, the reasonable setting for determining frequency water supply pipe and water return pipeline and associated components, eliminate necessary variable frequency pump in constant pressure water supply equipment, the investment of frequency converter is saved, reduce PLC control program, the revolving speed control that water pump is carried out without pressure instrumentation, greatly reduces construction investment.The requirement of pressure and flow can be met at any time in institute's water requirement change dramatically, adjusted in real time, automatically controlled.It is swift in response in time, eliminates instrument transmitting signal and provides the process time that command motor adjusts the speed adjustment water again；Reduce hardware device in control process, greatly reduce failure rate, extends the service life of equipment.
Description
Technical field
The utility model belongs to converter steeling technology field more particularly to a kind of constant pressure water supply system of fixed frequency pump.
Background technique
Oxygen converter steelmaking flue gas is one of the Air Pollutants that pneumatic steelmaking industrial processes generate, converter cigarette
Coal gas, iron dust containing will realize recycling and utilization in gas, spend since pneumatic steelmaking flue-gas temperature is up to 1600 more, dry method is removed at present
Dirt technique is widely used and coal gas of converter primary dedusting, is gradually replacing the former higher wet dedusting technique that consumes energy.Dry method
In dust collecting process, flue gas is after evaporated flue cools down, and for temperature still at 1000 degree or so, flue gas at this time passes through devaporizer
Cooling rapidly, since converter gas operating condition is complicated, exhaust gas volumn and temperature change are frequently and pace of change is quite fast, therefore how to have
The water that effect cooling and guarantee spray into all has flashed to the key technology in control.Currently, in Controlling model and regulating valve hardware
In guarantee, process system has mature technology, but how to guarantee that the water supply before regulating valve reaches 100% by 0 in regulating valve moment
In the process, pressure of supply water has been remained unchanged into key factor.Variable frequency water supply pump is selected to supply water water injection system in previous technique
Also it is able to achieve, but in pressure detecting signal to PLC, then the acceleration-deceleration operation for thering is control system order frequency converter to restart pump,
Until the process that pressure of supply water changes to required pressure needs several reaction time, it can for the technique of pneumatic steelmaking flue gas variation
It can some lag.Based on this situation, including other water requirements frequently change, and need corresponding speed especially timely under situation
Water supply device be also badly in need of having the constant pressure water supply equipment for determining frequency pump to be supplied.
Utility model content
The utility model provides a kind of constant pressure water supply system of fixed frequency pump, and the first purpose is the shape frequently changed in water requirement
Under condition, timely, quick response, the second purpose it can be that structure is simple, reduce cost of investment, purpose in the case where guaranteeing hydraulic pressure
Third is that can run steadily in the long term, long service life, failure rate it is low.
To achieve the above object, the technical solution of the utility model is:
A kind of constant pressure water supply system of fixed frequency pump, includes at least self-complementary waterpipe and EC sprays valve group, the self-water replenishing
Pipeline output end is connected to by being automatically replenished valve group with water tank, and water tank output end is connect with frequency water supply pipe input terminal is determined, fixed frequency
Water supply pipe output end is connected to EC spray valve group, and it is also defeated with water return pipeline by reducer union to determine frequency water supply pipe output end
It is in parallel to enter end, the output end of water return pipeline is connected to water tank.
The frequency water supply pipe of determining includes determining frequency water supply pump and check-valves, the input terminal and water for determining frequency water supply pump
Case connection, the output end for determining frequency water supply pump are connected to the input terminal of check-valves, and the output end of check-valves is connected to EC spray valve group.
It is described determine to also set up on frequency water supply pipe there are two Hand-operated butterfly valves, respectively first manual butterfly valve and second manually
Butterfly valve, first manual butterfly valve input terminal are connected to water tank, and the output end of the first dynamic butterfly valve is connected to the input terminal for determining frequency water supply pump,
The input terminal of second Hand-operated butterfly valve is connected to the output end of check-valves, and the output end of the second dynamic butterfly valve is connected to EC spray valve group.
Described determines to be additionally provided with filter and flexible coupling, the input terminal and first manual of filter on frequency water supply pipe
The output end of butterfly valve is connected to, and the output end of filter is connected to the input terminal for determining frequency water supply pump, and there are two flexible coupling settings, point
It is not connected to the two sides for determining frequency water supply pump.
The filter is using y-type filter.
The frequency water supply pipe of determining is provided with two, determines frequency water supply pipe for two and is connected using parallel way.
Safety relief valve is provided on the water return pipeline, the input terminal of the safety relief valve and reducer union connect
Logical, the output end of safety relief valve is connected to water tank.
It is additionally provided with Hand-operated butterfly valve on the water return pipeline, the input terminal of the Hand-operated butterfly valve and safety relief valve
Output end connection, the output end of Hand-operated butterfly valve are connected to water tank.
The automatic water supplement valve group includes three Hand-operated butterfly valves and a Remote control valve door, two of them Hand-operated butterfly valve
The two sides of Remote control valve door are laid in, and in parallel with third Hand-operated butterfly valve.
The water tank is additionally provided with blowoff line, and the input terminal of the blowoff line is connected to the bottom of water tank.
The beneficial effects of the utility model are:
1, described in the utility model this arrangement eliminates variable frequency pump necessary in constant pressure water supply equipment, save change
The investment of frequency device, reduces PLC control program, and the revolving speed control of water pump is carried out without pressure instrumentation, greatly reduces and builds
If cost of investment.
2, the requirement of pressure and flow can be met at any time in institute's water requirement change dramatically, adjusted in real time, automatically controlled.Instead
It should eliminate instrument transmitting signal rapidly in time and provide the process time that command motor adjusts the speed adjustment water again.
3, reduce hardware device in control process, greatly reduce failure rate and extend the service life of equipment.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the utility model attachment structure schematic diagram.
In figure:
1- water tank；2- Remote control valve door；3- filter；4- determines frequency water supply pump；5- flexible coupling；6- check-valves；7- is fixed
Frequency water supply pipe；8- reducer union；9- safety relief valve；10- Hand-operated butterfly valve, 11- water return pipeline, 12- blowoff line.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment one:
A kind of constant pressure water supply system of fixed frequency pump as shown in Figure 1, includes at least self-complementary waterpipe and EC sprays valve group, institute
The self-complementary waterpipe output end stated is connected to by being automatically replenished valve group with water tank 1,1 output end of water tank with to determine frequency water supply pipe 7 defeated
Enter end connection, determines 7 output end of frequency water supply pipe and be connected to EC spray valve group, determine 7 output end of frequency water supply pipe and pass through reducer union 8
Also in parallel with the input terminal of water return pipeline 11, the output end of water return pipeline 11 is connected to water tank 1.
The preferably described frequency water supply pipe 7 of determining includes determining frequency water supply pump 4 and check-valves 6, and described determines frequency water supply pump 4
Input terminal be connected to water tank 1, the output end for determining frequency water supply pump 4 is connected to the input terminal of check-valves 6, the output end of check-valves 6
It is connected to EC spray valve group.
Preferably safety relief valve 9, the input terminal of the safety relief valve 9 are provided on the water return pipeline 11
It is connected to reducer union 8, the output end of safety relief valve 9 is connected to water tank 1.
Preferably the automatic water supplement valve group includes three Hand-operated butterfly valves 10 and a Remote control valve door 2, wherein
Two Hand-operated butterfly valves 10 are laid in the two sides of Remote control valve door 2, and in parallel with third Hand-operated butterfly valve 10.
In actual use, frequency water supply pump 4 is determined in water supply pump selection, will determine 4 type selecting of frequency water supply pump and is selected as required lift and most
Flow needed for big.After water pump is opened, at water, with water pressure, constant but flow frequently changes, and passes through safety relief valve 9
The principle of mechanical pressure regulation passes through spring in 9 body of safety relief valve, and setting outlet pressure, which reaches required pressure, can guarantee outlet
Pressure guarantees outlet pressure to adjust the water source of certain pressure at supply water at any time, is reduced with at water with water flow
When, hydraulic pressure is higher than setting pressure and then passes through water return pipeline 11 by extra water return water tank, when the water route needed for unexpected increases, then
The water for returning to water tank is reduced immediately, to guarantee the water pressure invariableness at EC spray valve group.The setting for being automatically replenished valve group being capable of root
It is automatically replenished according to height of liquid level, guarantees the moisture storage capacity of water tank 1, to guarantee that water supply device operates normally.It is automatically replenished in valve group
Filter is set, additionally it is possible to guarantee good quality of water supply.The setting of check-valves be in order to prevent a pump working when, water
It directly gets to and returns to water tank in stand-by pump.The setting of reducer union 8 is in order to which different tube diameters are determined frequency water supply pipe 7 and return water
Pipeline 11 is connected and is used.
It is automatically replenished valve group and three Hand-operated butterfly valves 10 and a Remote control valve door 2 is set, be in order to during realizing maintenance
Can manual moisturizing and bypass is set.Under normal circumstances, two Hand-operated butterfly valves on the main line of about 2 Remote control valve door are beaten
It opens, the Hand-operated butterfly valve in bypass is closed, and by the opening and closing of Liquid level electrical ball valve, realizes automatic water supplement；It, will under accident condition
Two Hand-operated butterfly valves on the main line of about 2 Remote control valve door are closed, and the Hand-operated butterfly valve in manual switch bypass realizes hand
Dynamic moisturizing.Remote control valve door 2 is overhauled during manual moisturizing, restores auto state as early as possible.
The utility model provide it is a kind of under the situation that water requirement frequently changes, can in the case where guaranteeing hydraulic pressure and
When, quick response determine frequency constant pressure water supply equipment, and the utility model realizes and determines the constant pressure water supply system correlation of frequency pump and set
Standby maintenance, but the constant pressure water supply system for not influencing fixed frequency pump works normally water system, and the utility model structure is simple, reduces
Cost of investment, the utility model be it is a kind of can run steadily in the long term, long service life, failure rate are low determines frequency constant pressure water supply dress
It sets.
Embodiment two:
A kind of constant pressure water supply system of fixed frequency pump as shown in Figure 1, on the basis of embodiment 1: described determines frequency water supply
It is also set up on pipeline 7 there are two Hand-operated butterfly valve 10, respectively first manual butterfly valve and the second Hand-operated butterfly valve, first manual butterfly valve is defeated
Enter end to be connected to water tank 1, the output end of the first dynamic butterfly valve is connected to the input terminal for determining frequency water supply pump 4, the second Hand-operated butterfly valve it is defeated
Enter end to be connected to the output end of check-valves 6, the output end of the second dynamic butterfly valve is connected to EC spray valve group.
It is preferably described to determine to be additionally provided with filter 3 and flexible coupling 5 on frequency water supply pipe 7, the input of filter 3
End is connected to the output end of first manual butterfly valve, and the output end of filter 3 is connected to the input terminal for determining frequency water supply pump 4, and flexibility connects
There are two first 5 settings, is connected to the two sides for determining frequency water supply pump 4.
Preferably the filter 3 is using y-type filter.
In actual use, determining to also set up on frequency water supply pipe 7 there are two Hand-operated butterfly valve 10 is mainly accident or maintenance
To the control of each water lines under state, including it is automatically replenished in pipeline, when electrically operated valve repairs, the Hand-operated butterfly valve of openable bypass
10 carry out manual moisturizing；Hand-operated butterfly valve 10 before and after water pump including that can close maintenance when water pump maintenance is guaranteeing reserve pump group just
Often supply water.Determine that filter 3 is arranged on frequency water supply pipe 7, ensure that the quality for determining the water that frequency water supply pipe Gong goes out, guarantee to confess
The water gone contains particle size in a certain range.Determining setting flexible coupling 5 on frequency water supply pipe 7 ensure that water pump and pipeline shake
It is dynamic not interfere with each other.Filter 3 uses y-type filter, the running advantage of y-type filter include it is whole it is full-automatic, non-maintaining,
Filter area is big, strainer is high-efficient, long service life, stainless steel material, filtering accuracy are optional, complete in specifications.With other filterings
Equipment is one of most effective equipment in Treated sewage reusing engineering compared to it, and the water quality after y-type filter processing is not
Only reach the discharge standard of national regulation, and the purpose that water also achieves repetition, recycles.
Embodiment three:
A kind of constant pressure water supply system of fixed frequency pump as shown in Figure 1, on the basis of embodiment 1: described
Determine frequency water supply pipe 7 and be provided with two, determines frequency water supply pipe 7 for two and connected using parallel way.
In the specific implementation, determine frequency water supply pipe 7 and be arranged two, but in actual use, only with one therein, another
Main function be it is spare, i.e., one it is problematic or maintenance when, another can guarantee to produce.To ensure that holding for device work
Continuous property.
Example IV:
A kind of constant pressure water supply system of fixed frequency pump as shown in Figure 1, on the basis of embodiment 1: on water return pipeline 11 also
It is provided with Hand-operated butterfly valve 10, the input terminal of the Hand-operated butterfly valve 10 is connected to the output end of safety relief valve 9, Hand-operated butterfly valve 10
Output end be connected to water tank 1.
In actual use, Hand-operated butterfly valve 10 is set on water return pipeline 11, and main function is exactly for convenience of accident or maintenance
Each water lines are implemented to control under state.
Embodiment five:
A kind of constant pressure water supply system of fixed frequency pump as shown in Figure 1, on the basis of embodiment 1: the water tank 1 is also set
It is equipped with blowoff line 12, the input terminal of the blowoff line 12 is connected to the bottom of water tank 1.
In actual use, after water tank 1 uses a period of time, certain deposit can be generated in the bottom of water tank 1,
The setting of blowoff line 12 can in time exclude dirt from water tank 1, guarantee the water quality of water tank.
In conclusion the above-mentioned technical proposal of the utility model, by self-complementary waterpipe, automatic water supplement valve group, water tank 1,
The reasonable setting for determining frequency water supply pipe 7 and water return pipeline 11 and associated components eliminates necessary frequency conversion in constant pressure water supply equipment
Water pump has saved the investment of frequency converter, has reduced PLC control program, and the revolving speed control of water pump is carried out without pressure instrumentation,
Greatly reduce construction investment.The requirement of pressure and flow can be met at any time in institute's water requirement change dramatically, adjusted in real time, from
Dynamic control.It is swift in response in time, eliminates instrument transmitting signal and provides the process time that command motor adjusts the speed adjustment water again；
Reduce hardware device in control process, greatly reduce failure rate, extends the service life of equipment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Technical solution between each embodiment can be combined with each other, but must be with those of ordinary skill in the art's energy
It is enough realize based on, will be understood that the knot of this technical solution when conflicting or cannot achieve when occurs in the combination of technical solution
Conjunction is not present, also not within the protection scope of the requires of the utility model.The component and structure that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of the category industry, do not describe one by one here.
Claims (10)
1. a kind of constant pressure water supply system of fixed frequency pump, includes at least self-complementary waterpipe and EC sprays valve group, it is characterised in that: is described
Self-complementary waterpipe output end by be automatically replenished valve group be connected to water tank (1), water tank (1) output end with determine frequency water supply pipe
(7) input terminal connects, and determines frequency water supply pipe (7) output end and is connected to EC spray valve group, determines frequency water supply pipe (7) output end and pass through
Reducer union (8) is also in parallel with the input terminal of water return pipeline (11), and the output end of water return pipeline (11) is connected to water tank (1).
2. a kind of constant pressure water supply system of fixed frequency pump as described in claim 1, it is characterised in that: described determines frequency water supply pipe
It (7) include determining frequency water supply pump (4) and check-valves (6), the input terminal for determining frequency water supply pump (4) is connected to water tank (1), fixed frequency
The output end of water supply pump (4) is connected to the input terminal of check-valves (6), and the output end of check-valves (6) is connected to EC spray valve group.
3. a kind of constant pressure water supply system of fixed frequency pump as claimed in claim 2, it is characterised in that: described determines frequency water supply pipe
(7) it is also set up on there are two Hand-operated butterfly valve (10), respectively first manual butterfly valve and the second Hand-operated butterfly valve, first manual butterfly valve is defeated
Enter end to be connected to water tank (1), the output end of the first dynamic butterfly valve is connected to the input terminal for determining frequency water supply pump (4), the second Hand-operated butterfly valve
Input terminal be connected to the output end of check-valves (6), the output end of the second dynamic butterfly valve is connected to EC spray valve group.
4. a kind of constant pressure water supply system of fixed frequency pump as claimed in claim 3, it is characterised in that: described determines frequency water supply pipe
(7) filter (3) and flexible coupling (5) are additionally provided on, the input terminal of filter (3) and the output end of first manual butterfly valve connect
Logical, the output end of filter (3) is connected to the input terminal for determining frequency water supply pump (4), and there are two flexible coupling (5) settings, is connected respectively
It connects in the two sides for determining frequency water supply pump (4).
5. a kind of constant pressure water supply system of fixed frequency pump as claimed in claim 4, it is characterised in that: the filter (3) is adopted
It is y-type filter.
6. a kind of constant pressure water supply system of fixed frequency pump as claimed in claim 2, it is characterised in that: described
Determine frequency water supply pipe (7) and be provided with two, determines frequency water supply pipe (7) for two and connected using parallel way.
7. a kind of constant pressure water supply system of fixed frequency pump as described in claim 1, it is characterised in that: the water return pipeline (11)
On be provided with safety relief valve (9), the input terminal of the safety relief valve (9) is connected to reducer union (8), safety relief valve
(9) output end is connected to water tank (1).
8. a kind of constant pressure water supply system of fixed frequency pump as claimed in claim 7, it is characterised in that: the water return pipeline (11)
On be additionally provided with Hand-operated butterfly valve (10), the input terminal of the Hand-operated butterfly valve (10) is connected to the output end of safety relief valve (9),
The output end of Hand-operated butterfly valve (10) is connected to water tank (1).
9. a kind of constant pressure water supply system of fixed frequency pump as described in claim 1, it is characterised in that: the automatic water supplement valve group
Including three Hand-operated butterfly valves (10) and a Remote control valve door (2), two of them Hand-operated butterfly valve (10) is laid in long-range control
The two sides of valve (2), and it is in parallel with third Hand-operated butterfly valve (10).
10. a kind of constant pressure water supply system of fixed frequency pump as described in claim 1,2,3,7 or 8, it is characterised in that: the water
Case (1) is additionally provided with blowoff line (12), and the input terminal of the blowoff line (12) is connected to the bottom of water tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820959521.3U CN208472854U (en) | 2018-06-21 | 2018-06-21 | A kind of constant pressure water supply system of fixed frequency pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820959521.3U CN208472854U (en) | 2018-06-21 | 2018-06-21 | A kind of constant pressure water supply system of fixed frequency pump |
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| Publication Number | Publication Date |
|---|---|
| CN208472854U true CN208472854U (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820959521.3U Active CN208472854U (en) | 2018-06-21 | 2018-06-21 | A kind of constant pressure water supply system of fixed frequency pump |
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| Country | Link |
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| CN (1) | CN208472854U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560645A (en) * | 2018-06-21 | 2018-09-21 | 中国重型机械研究院股份公司 | A kind of constant pressure water supply system and method for fixed frequency pump |
| CN110409564A (en) * | 2019-08-14 | 2019-11-05 | 浙江君鸿机械有限公司 | A kind of remote wireless control constant pressure water supply system |
-
2018
- 2018-06-21 CN CN201820959521.3U patent/CN208472854U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108560645A (en) * | 2018-06-21 | 2018-09-21 | 中国重型机械研究院股份公司 | A kind of constant pressure water supply system and method for fixed frequency pump |
| CN108560645B (en) * | 2018-06-21 | 2024-03-01 | 中国重型机械研究院股份公司 | Constant-pressure water supply system and method of constant-frequency pump |
| CN110409564A (en) * | 2019-08-14 | 2019-11-05 | 浙江君鸿机械有限公司 | A kind of remote wireless control constant pressure water supply system |
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