CN207471683U - A kind of modified heat-exchange unit water replanishing device - Google Patents
A kind of modified heat-exchange unit water replanishing device Download PDFInfo
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- CN207471683U CN207471683U CN201721524421.XU CN201721524421U CN207471683U CN 207471683 U CN207471683 U CN 207471683U CN 201721524421 U CN201721524421 U CN 201721524421U CN 207471683 U CN207471683 U CN 207471683U
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- small pump
- moisturizing
- switch board
- pipe network
- exchange unit
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Abstract
The utility model discloses a kind of modified heat-exchange unit water replanishing devices, including the first moisturizing pipe network and the second moisturizing pipe network, wherein the second moisturizing pipe network is as the spare of the first moisturizing pipe network, the device configuration that first moisturizing pipe network and the second water supply pipe are installed on the net is identical, first moisturizing pipe network includes the small pump being installed in moisturizing pipeline, small pump inlet pipeline is equipped with the first temperature sensor, first temperature sensor is connected with switch board, small pump outlet conduit is equipped with check-valves, check-valves rear end is equipped with electrical ball valve, electrical ball valve is connected with switch board, the electrical ball valve is connected with the heat-exchange unit inlet pipeline of required moisturizing.The utility model structural principle is simple, effectively prevents in the case of non-return defective valve, and system continues dehydration and the situation shut down is caused to occur, and also avoids the situation that moisturizing pump machine envelope is caused to be burnt due to non-return defective valve.
Description
Technical field
The utility model is related to Heating,Ventilating and Air Conditioning technical field, specially a kind of modified heat-exchange unit water replanishing device.
Background technology
Heat-exchange unit has been widely used for Heating,Ventilating and Air Conditioning industry and industrial circle, the application of the water replanishing device of heat-exchange unit
Also it is more and more ripe.In existing technology, the water replanishing device of general heat-exchange unit is provided with two small pumps, wherein a benefit
During pump working, another small pump is spare.Small pump inlet and outlet, which are set, manually switches off valve, the exit of pump choosing in water replanishing device
With check-valves, to prevent impact of the high pressure water flow to water pump vane.When pressure reduction or water shortage in institute's complement system, water replanishing device is certainly
It is dynamic to be actuated for moisturizing process, when moisturizing pump discharge（That is check-valves leading portion）Pressure be more than check-valves rear end pressure, non-return
Valve flap can be opened slowly, and then supplement medium to system, improve the pressure of system to when setting pressure spot, and small pump stops,
Check-valves flap moment close, it is therefore prevented that system dehydration and continue start small pump, effectively prevent small pump and continuously run.
But small pump and check-valves, in actual moving process, there are the following problems：
Exit of pump only sets check-valves and manually switches off valve, and security performance is not high.Among heating operation process, most hold
What is easily gone wrong is the water charging system of heat-exchange unit, and the front end of water charging system is usually provided that water softener and with manhole
Water supply tank, in system operation, it is easy to which small resin and partial impurities are transported to check-valves front end by small pump.
During the heat exchange station operational management of long period, it finds that, even if check-valves is mingled with fine particle, it will also result in check-valves
Failure, and then make system dehydration.When system high-temperature medium pass through small pump pump chamber when, meet medium itself gasification temperature and
Under vapor pressure common conditions, medium is made to gasify, and then gas is filled in small pump pump chamber, make small pump can not normal work
Make, be constantly in the state of flogging a dead horse, waste electric energy.Since moisturizing pump machine envelope is mechanical seal, lubricant is supplemented
Medium in itself, can not be normally carried out lubricating at this point, moisturizing pump machine is sealed, under prolonged operation, it will abrasion moisturizing pump machine envelope drops
The service life of low small pump.At this point, due to the failure of check-valves, higher than water charging system, system can be held the pressure of operating system
Continuous dehydration, and gas collection in small pump pump chamber, make it be continuously in the state of flogging a dead horse, system continues dehydration, waste of resource.Heat exchange
Machine set system also will be unable to normal operation, so as to cause shutdown.
Utility model content
The purpose of this utility model is to provide a kind of modified heat-exchange unit water replanishing device, to solve above-mentioned background technology
The problem of middle proposition.
To achieve the above object, the utility model provides following technical solution：A kind of modified heat-exchange unit water replanishing device,
Including the first moisturizing pipe network and the second moisturizing pipe network, the equipment that the first moisturizing pipe network and the second water supply pipe are installed on the net is matched
Put identical, the first moisturizing pipe network includes being installed on small pump in moisturizing pipeline, and the small pump inlet pipeline is equipped with
First temperature sensor, first temperature sensor are connected with switch board, and the small pump outlet conduit is equipped with non-return
Valve, the check-valves rear end are equipped with electrical ball valve, and the electrical ball valve is connected with switch board, the electrical ball valve and required benefit
The heat-exchange unit inlet pipeline of the heat-exchange unit of water is connected；The heat-exchange unit inlet pipeline is equipped with second temperature sensor
And pressure sensor, the second temperature sensor and pressure sensor are connected with switch board；First temperature sensing
The temperature signal T1 for acquiring moisturizing pump inlet is transferred to switch board, the pressure of the pressure sensor acquisition moisturizing pump discharge by device
Signal P1 is transferred to switch board, and P1 is compared by switch board with the moisturizing pump discharge pressure set, controls the small pump
Start and stop state.
Preferably, the moisturizing pump discharge is equipped with check-valves, and the check-valves rear end is equipped with electrical ball valve, in check-valves just
Often in the case of work, the temperature signal T1 for acquiring moisturizing pump inlet is transferred to switch board by first temperature sensor, institute
It states switch board to be compared T1 with the moisturizing pump inlet inflow temperature set, controls the valve start and stop shape of the electrical ball valve
State.
Preferably, first temperature sensor is connected with switch board, and first temperature sensor will acquire moisturizing
The temperature signal T1 of pump inlet is transferred to switch board, and the switch board compares T1 with the moisturizing pump inlet inflow temperature set
Compared with controlling the valve start and stop state of the electrical ball valve.
Compared with prior art, the beneficial effects of the utility model are：The utility model structural principle is simple, effectively prevent
In the case of the non-return defective valve, system continues dehydration and the situation shut down is caused to occur, and also avoids because of non-return defective valve
And the situation that moisturizing pump machine envelope is caused to be burnt.The utility model is particularly important in the application of unattended type and large-scale heat exchange station,
The control mode of heat-exchange unit and heat exchange station is improved, also provides longer maintenance time.Compared to existing technology, this reality
With novel also prominent the advantages that embodying energy-saving and water resource waste.
Description of the drawings
Fig. 1 is the utility model overall structure diagram.
In figure：1st, the first temperature sensor, 2, butterfly valve, 3, small pump, 4, check-valves, 5, electrical ball valve, 6, water tank, 7, pressure
Force snesor, 8, switch board, 9, heat-exchange unit, the 10, first moisturizing pipe network, the 11, second moisturizing pipe network, 12, heat-exchange unit import
Pipeline, 13, second temperature sensor.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of modified heat-exchange unit water replanishing device, including
First moisturizing pipe network and the second moisturizing pipe network, wherein spare, first water supply pipe of the second moisturizing pipe network as the first moisturizing pipe network
The device configuration installed on net 10 and the second moisturizing pipe network 11 is identical, and the first moisturizing pipe network 10 includes being installed in moisturizing pipeline
Small pump 3,3 inlet pipeline of small pump is equipped with the first temperature sensor 1, and the first temperature sensor 1 is connected with switch board 8
It connects, 3 outlet conduit of small pump is equipped with check-valves 4, and 4 rear end of check-valves is equipped with electrical ball valve 5, electrical ball valve 5 and 8 phase of switch board
Connection, the electrical ball valve 5 are connected with the heat-exchange unit inlet pipeline 12 of the heat-exchange unit 9 of required moisturizing.
In the utility model, heat-exchange unit inlet pipeline 12 is equipped with second temperature sensor 13 and pressure sensor 7, energy
Enough acquire the temperature and pressure signal in pipeline；Second temperature sensor 13 and pressure sensor 7 are connected with switch board 8；
The temperature signal T1 for acquiring 3 import of small pump is transferred to switch board 8 by the first temperature sensor 1, and pressure sensor 7 acquires moisturizing
The pressure signal P 1 of 3 outlet of pump is transferred to switch board 8, and P1 is compared by switch board 8 with 3 outlet pressure of small pump set,
Control the start and stop state of small pump 3.Ensure that the pressure of heat-exchange unit 9 is constant.
In the utility model, the outlet of small pump 3 is equipped with check-valves 4, and 4 rear end of check-valves is equipped with electrical ball valve 5, in check-valves
In the case of 4 normal works, the temperature signal T1 for acquiring 3 import of small pump is transferred to switch board 8 by the first temperature sensor 1,
T1 is compared by switch board 8 with the 3 import inflow temperature of small pump set, controls the valve start and stop state of electrical ball valve 5.It protects
Card electrical ball valve 5 fully opens, and avoids water conservancy loss, also effectively prevents influence of " water hammer " phenomenon to small pump 3.
In the utility model, the first temperature sensor 1 is connected with switch board 8, and the first temperature sensor 1 will acquire moisturizing
The temperature signal T1 for pumping 3 imports is transferred to switch board 8, and switch board 8 compares T1 with the 3 import inflow temperature of small pump set
Compared with the valve start and stop state of control electrical ball valve 5.In the case of preventing the failure of check-valves 4,9 system of heat-exchange unit continues dehydration,
The waste of water resource is effectively prevented, ensure that and failed check-valves 4 is repaired under not shutdown status, and is provided reliable
Repair the time of failed check-valves 4.
4 rear end of check-valves is equipped with electrical ball valve 5, and electrical ball valve 5 is connected with switch board 8, the first temperature sensor 1 and control
Cabinet 8 processed is connected, and the temperature signal T1 for acquiring 3 import of small pump is transferred to switch board 8, switch board 8 by the first temperature sensor 1
T1 with the 3 import inflow temperature of small pump set is compared, controls the valve start and stop state of the electrical ball valve 5, it is electronic
By the start and stop state transfer of itself to switch board 8, switch board 8 is opened ball valve 5 by the state of the electrical ball valve 5 with setting to control
Stop the state of small pump 3, meet electrical ball valve 5 at the same time and pressure sensor 7 acquires the pressure signal P 1 that small pump 3 exports
When, small pump 3 can be started, achieve the effect that energy-saving, and avoid and burn moisturizing in no water lubrication
The situation of 3 machines envelope is pumped, extends the service life of small pump.
Second moisturizing pipe network 11 is spare as the first moisturizing pipe network 10, in equipment fault on the first moisturizing pipe network 10,
The relevant device on the second moisturizing pipe network 11 and the second moisturizing pipe network 11 is enabled immediately.
The control method step of the utility model is as follows：
1）Using the pressure signal P 1 of pressure sensor acquisition moisturizing pump discharge, and by the data transfer of P1 to controller,
Controller will pass through detection system actual pressure value（PIt is practical）With setup pressure value（PSetting）It is compared.Work as PIt is practical＜ PSettingWhen, it mends
Starting mode of pump, check-valves is under the pressure change of front and back end, mechanical opening, and moisturizing is carried out to system；Work as PIt is practical＞ PSettingWhen,
Small pump stop, check-valves is mechanical to be closed under the pressure change of front and back end, effectively prevent system dehydration and
" water hammer " phenomenon is influenced caused by water pump vane, also ensures that the pressure in heat-exchange unit system is constant.
2）Using the first temperature sensor, the temperature signal T1 of collected moisturizing pump inlet is transferred to controller, is controlled
T1 is compared by device processed with the small pump inlet temperature set, and the collected temperature of temperature sensor is higher than setting value, explanation
Non-return defective valve, at this time the function of electrical ball valve can work instead of check-valves, it is ensured that system pressure it is constant.Moisturizing fills
It puts and by " intelligent protection method " can effectively prevent that " water hammer " phenomenon damage small pump occurs.Controller receives temperature sensor
The data-signal of acquisition, feeds back to electrical ball valve, is closed electrical ball valve, it is therefore prevented that system continues dehydration, avoids
Heat-exchange unit system causes to shut down and avoids the waste of water resource due to dehydration；In addition, small pump is made to be in shutdown status,
Play energy-saving effect.
3）Using electrical ball valve by the start and stop state transfer of itself to controller, controller is by the electrical ball valve received
Switching signal is compared with the small pump start stop signal being correspondingly arranged, and when electrical ball valve is in opening state, small pump can basis
The P1 signals of pressure sensor transmission, start small pump at any time；When electrical ball valve is closed, small pump is not restarted,
It effectively prevents small pump and the phenomenon that moisturizing pump machine is sealed is burnt due to gas collection.
Water replanishing device provided by the utility model and its control mode implement duplicate protection to system, i.e., mechanical protection
Method and intelligent protection method are effectively prevented in the case of non-return defective valve, and system continues dehydration and leads to the situation shut down
Occur, also avoid the situation that moisturizing pump machine envelope is caused to be burnt due to non-return defective valve.The utility model in unattended type and
Large-scale heat exchange station improves the control mode of heat-exchange unit and heat exchange station, also provides longer repair using particularly important
Time.Compared to existing technology, the utility model also protrudes the advantages that waste for embodying energy-saving and water resource.
Claims (3)
1. a kind of modified heat-exchange unit water replanishing device, including the first moisturizing pipe network and the second moisturizing pipe network, it is characterised in that：Institute
State the first moisturizing pipe network（10）With the second moisturizing pipe network（11）On the device configuration installed it is identical, the first moisturizing pipe network
（10）Including the small pump being installed in moisturizing pipeline（3）, the small pump（3）Inlet pipeline is equipped with the first temperature sensor
（1）, first temperature sensor（1）With switch board（8）It is connected, the small pump（3）Outlet conduit is equipped with check-valves
（4）, the check-valves（4）Rear end is equipped with electrical ball valve（5）, the electrical ball valve（5）With switch board（8）It is connected, the electricity
Dynamic ball valve（5）With the heat-exchange unit of required moisturizing（9）Heat-exchange unit inlet pipeline（12）It is connected；The heat-exchange unit import
Pipeline（12）It is equipped with second temperature sensor（13）And pressure sensor（7）, the second temperature sensor（13）And pressure
Sensor（7）And switch board（8）It is connected；First temperature sensor（1）Small pump will be acquired（3）The temperature letter of import
Number T1 is transferred to switch board（8）, the pressure sensor（7）Acquire small pump（3）The pressure signal P 1 of outlet is transferred to control
Cabinet（8）, switch board（8）By P1 and the small pump of setting（3）Outlet pressure is compared, and controls the small pump（3）Start and stop
State.
2. a kind of modified heat-exchange unit water replanishing device according to claim 1, it is characterised in that：The small pump（3）
Outlet is equipped with check-valves（4）, the check-valves（4）Rear end is equipped with electrical ball valve（5）, in check-valves（4）The situation of normal work
Under, first temperature sensor（1）Small pump will be acquired（3）The temperature signal T1 of import is transferred to switch board（8）, the control
Cabinet processed（8）By T1 and the small pump of setting（3）Import inflow temperature is compared, and controls the electrical ball valve（5）Valve open
Stop state.
3. a kind of modified heat-exchange unit water replanishing device according to claim 1, it is characterised in that：First temperature passes
Sensor（1）With switch board（8）It is connected, first temperature sensor（1）Small pump will be acquired（3）The temperature signal T1 of import
It is transferred to switch board（8）, the switch board（8）By T1 and the small pump of setting（3）Import inflow temperature is compared, and controls institute
State electrical ball valve（5）Valve start and stop state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524421.XU CN207471683U (en) | 2017-11-15 | 2017-11-15 | A kind of modified heat-exchange unit water replanishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721524421.XU CN207471683U (en) | 2017-11-15 | 2017-11-15 | A kind of modified heat-exchange unit water replanishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207471683U true CN207471683U (en) | 2018-06-08 |
Family
ID=62260709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721524421.XU Active CN207471683U (en) | 2017-11-15 | 2017-11-15 | A kind of modified heat-exchange unit water replanishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207471683U (en) |
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2017
- 2017-11-15 CN CN201721524421.XU patent/CN207471683U/en active Active
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