CN104848380A - Fixed-pressure water replenishment device of heat exchange unit - Google Patents
Fixed-pressure water replenishment device of heat exchange unit Download PDFInfo
- Publication number
- CN104848380A CN104848380A CN201410602994.4A CN201410602994A CN104848380A CN 104848380 A CN104848380 A CN 104848380A CN 201410602994 A CN201410602994 A CN 201410602994A CN 104848380 A CN104848380 A CN 104848380A
- Authority
- CN
- China
- Prior art keywords
- water
- pressure
- pipe
- frequency pump
- variable frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a fixed-pressure water replenishment device of a heat exchange unit. The device mainly consists of a backflow preventer, a water treater, a water replenishment variable-frequency pump, an electromagnetic valve and a control box, wherein inlet water of the water replenishment variable-frequency pump is serially connected with a running water inlet pipe; the running water inlet pipe is provided with a negative pressure meter, a filter, the backflow preventer, the water treater and a pressure sensor 1 in sequence in a water flowing direction before being serially connected with the water replenishment variable-frequency pump; outlet water of the water replenishment variable-frequency pump is provided with a water replenishment pressure pipe for connecting with a secondary water return pipe of a heat exchanger; the electromagnetic valve is mounted on the water replenishment pressure pipe; a circulating pump is mounted on the secondary water return pipe of the heat exchanger; the secondary water return pipe is provided with a pressure sensor 2 and a safety valve before the circulating pump; and the secondary water return pipe is output by a secondary water supply pipe and is formed to a secondary circulating water system after passing through the heat exchanger. The device has such advantages as energy conservation, floor saving and investment saving on fixed-pressure water replenishment of the heat exchange unit, and has the beneficial effects of flexible installation and good use effect.
Description
Technical field
The present invention relates to heat-exchange unit technical field, specifically a kind of constant pressure water compensation apparatus of heat-exchange unit.
Background technology
In order to ensure the safe operation of heat-exchange unit and normal heat supply, constant pressure supply water must be carried out by heat exchanging unit.The constant pressure supply water method of heat-exchange unit mainly comprise pressurized by elevated expansion tank, small pump in conjunction with expansion drum level pressure and small pump frequency conversion level pressure several.Wherein, pressurized by elevated expansion tank communicates with air because water tank is uncovered, in the easy dissolved water of oxygen in air, increase the weight of the corrosion and ageing of heat exchanging unit and pipe-line system, reduce service life, and expansion tank must be placed in peak by pressurized by elevated expansion tank, the management of its I&M is extremely inconvenient; Although small pump avoids in conjunction with expansion drum level pressure the trouble that expansion tank is placed in peak, but it is comparatively large to arrange expansion drum volume, and price is high, take up an area large, and often also must inflate expansion drum with after a period of time, the air bag in expansion drum is easily aging will have influence on level pressure effect; Small pump frequency conversion level pressure uses more heat-exchange unit water-supply and pressure-stabling method at present, although good water-supply and pressure-stabling effect can be played, but small pump still need be fetched water in expansion tank, very easily boundary enters the oxygen of outside air and there is Corrosion Potential, and take up an area large, the intake pressure of expansion tank can not be utilized preferably, there is energy dissipation.
Summary of the invention
The object of the present invention is to provide a kind ofly to take up an area less, the constant pressure water compensation apparatus of reduced investment and energy-conservation heat-exchange unit.
The technical solution adopted for the present invention to solve the technical problems is: a kind of constant pressure water compensation apparatus of heat-exchange unit is primarily of backflow preventer, hydrotreater, moisturizing variable frequency pump, magnetic valve and control cabinet composition, the water inlet of moisturizing variable frequency pump is connected in series with running water water inlet pipe, running water water inlet pipe is equiped with vacuum table in turn in the forward position water (flow) direction of serial connection moisturizing variable frequency pump, filter, backflow preventer, hydrotreater and pressure sensor one, the water outlet of moisturizing variable frequency pump is provided with supplementing water pressure pipe and is connected with the secondary returning water pipe of heat exchanger, supplementing water pressure pipe is equipped with magnetic valve, the secondary returning water pipe of heat exchanger is equipped with circulating pump, supplementing water pressure pipe be connected to circulating pump before secondary returning water pipe on, secondary returning water pipe was also provided with pressure sensor two and safety valve before circulating pump, secondary returning water pipe exports and is formed secondary cycle water system by secondary water-supply pipe after heat exchanger.Described hydrotreater, pressure sensor one, moisturizing variable frequency pump, magnetic valve are connected with the control cabinet wiring arranged separately respectively with pressure sensor two, and also separately communication interface is provided with in control cabinet, described communication interface is used for remote monitoring and connects, and also can be connected with upper machine communication.
Operation principle of the present invention is, the secondary returning water pipe that moisturizing variable frequency pump is directly serially connected in heat exchanger on running water water inlet pipe laminates, the frequency conversion moisturizing of constant-pressure type, the pressure sensor one be contained on running water water inlet pipe detects moisturizing variable frequency pump intake pressure, the pressure sensor two be contained on secondary returning water pipe detects the pressure of secondary returning water pipe before circulating pump, and be provided with pressure of return water steady state value, when the pressure of return water steady state value that the pressure of secondary returning water pipe before circulating pump sets lower than pressure sensor two being detected, moisturizing variable frequency pump starts, magnetic valve is opened, running water flows through filter filtering foreign material by running water water inlet pipe, after the anti-backflow of backflow preventer and the process of hydrotreater demineralized water, the pressure of return water steady state value set relative to pressure sensor two by moisturizing variable frequency pump carries out frequency conversion water-supply and pressure-stabling, and moisturizing variable frequency pump can superpose running water water inlet pipe pressure and reaches energy-saving effect, run at moisturizing variable frequency pump, and the pressure stability of secondary returning water pipe before circulating pump is at the pressure of return water steady state value of setting, and when maintaining 30s ~ 60s, moisturizing variable frequency pump is shut down, closed electromagnetic valve and the moisturizing of cut-out supplementing water pressure pipe, when the pressure of return water steady state value that the pressure of secondary returning water pipe before circulating pump sets lower than pressure sensor two being detected, moisturizing variable frequency pump restarts and constant pressure supply water, and magnetic valve is opened, and so repeatedly, realizes the constant pressure supply water of heat exchanging unit.
The invention has the beneficial effects as follows, heat exchanging unit constant pressure supply water of the present invention have energy-conservation, save land and the advantage such as reduced investment, and flexible for installation, result of use is good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, running water water inlet pipe, 2, vacuum table, 3, filter, 4, backflow preventer, 5, hydrotreater, 6, pressure sensor one, 7, moisturizing variable frequency pump, 8, supplementing water pressure pipe, 9, communication interface, 10, magnetic valve, 11, control cabinet, 12, secondary returning water pipe, 13, safety valve, 14, pressure sensor two, 15, circulating pump, 16, secondary water-supply pipe, 17, heat exchanger.
Detailed description of the invention
Be described in detail below with regard to the constant pressure water compensation apparatus of accompanying drawing 1 to a kind of heat-exchange unit of the present invention below.
As shown in Figure 1, the constant pressure water compensation apparatus of a kind of heat-exchange unit of the present invention is primarily of backflow preventer 4, hydrotreater 5, moisturizing variable frequency pump 7, magnetic valve 10 and control cabinet 11 form, moisturizing variable frequency pump 7 water inlet is connected in series with running water water inlet pipe 1, running water water inlet pipe 1 is equiped with vacuum table 2 in turn in the forward position water (flow) direction of serial connection moisturizing variable frequency pump 7, filter 3, backflow preventer 4, hydrotreater 5 and pressure sensor 1, moisturizing variable frequency pump 7 water outlet is provided with supplementing water pressure pipe 8 and is connected with the secondary returning water pipe 12 of heat exchanger 17, supplementing water pressure pipe 8 is equipped with magnetic valve 10, the secondary returning water pipe 12 of heat exchanger 17 is equipped with circulating pump 15, supplementing water pressure pipe 8 is connected on the secondary returning water pipe 12 before circulating pump 15, secondary returning water pipe 12 was also provided with pressure sensor 2 14 and safety valve 13 before circulating pump 15, secondary returning water pipe 12 exports and is formed secondary cycle water system by secondary water-supply pipe 16 after heat exchanger 17.Described hydrotreater 5, pressure sensor 1, moisturizing variable frequency pump 7, magnetic valve 10 are connected with control cabinet 11 wiring arranged separately respectively with pressure sensor 2 14, and also communication interface 9 is separately provided with in control cabinet 11, described communication interface 9 connects for remote monitoring, also can be connected with upper machine communication.
Operation principle of the present invention is, the secondary returning water pipe 12 that moisturizing variable frequency pump 7 is directly serially connected in heat exchanger 17 on running water water inlet pipe 1 laminates, the frequency conversion moisturizing of constant-pressure type, the pressure sensor 1 be contained on running water water inlet pipe 1 detects moisturizing variable frequency pump 7 intake pressure, the pressure sensor 2 14 be contained on secondary returning water pipe 12 detects the pressure of secondary returning water pipe 12 before circulating pump 15, and be provided with pressure of return water steady state value, when the pressure of return water steady state value that the pressure of secondary returning water pipe 12 before circulating pump 15 sets lower than pressure sensor 2 14 being detected, moisturizing variable frequency pump 15 starts, magnetic valve 10 is opened, running water flows through filter 3 filtering foreign material by running water water inlet pipe 1, after the anti-backflow of backflow preventer 4 and the process of hydrotreater 5 demineralized water, the pressure of return water steady state value set relative to pressure sensor 2 14 by moisturizing variable frequency pump 7 carries out frequency conversion water-supply and pressure-stabling, and moisturizing variable frequency pump 7 can superpose running water water inlet pipe 1 pressure and reaches energy-saving effect, run at moisturizing variable frequency pump 7, and the pressure stability of secondary returning water pipe 12 before circulating pump 15 is at the pressure of return water steady state value of setting, and when maintaining 30s ~ 60s, moisturizing variable frequency pump 7 is shut down, magnetic valve 10 cuts out and cuts off supplementing water pressure pipe 8 moisturizing, when the pressure of return water steady state value that the pressure of secondary returning water pipe 12 before circulating pump 15 sets lower than pressure sensor 2 14 being detected, moisturizing variable frequency pump 7 restarts and constant pressure supply water, and magnetic valve 10 is opened, and so repeatedly, realizes the constant pressure supply water of heat exchanging unit.
Claims (2)
1. the constant pressure water compensation apparatus of a heat-exchange unit is primarily of backflow preventer, hydrotreater, moisturizing variable frequency pump, magnetic valve and control cabinet composition, it is characterized in that, the water inlet of moisturizing variable frequency pump is connected in series with running water water inlet pipe, running water water inlet pipe is equiped with vacuum table in turn in the forward position water (flow) direction of serial connection moisturizing variable frequency pump, filter, backflow preventer, hydrotreater and pressure sensor one, the water outlet of moisturizing variable frequency pump is provided with supplementing water pressure pipe and is connected with the secondary returning water pipe of heat exchanger, supplementing water pressure pipe is equipped with magnetic valve, the secondary returning water pipe of heat exchanger is equipped with circulating pump, supplementing water pressure pipe be connected to circulating pump before secondary returning water pipe on, secondary returning water pipe was also provided with pressure sensor two and safety valve before circulating pump.
2. the constant pressure water compensation apparatus of a kind of heat-exchange unit according to claim 1, it is characterized in that, described hydrotreater, pressure sensor one, moisturizing variable frequency pump, magnetic valve are connected with the control cabinet wiring arranged separately respectively with pressure sensor two, and are also separately provided with communication interface in control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602994.4A CN104848380A (en) | 2014-11-03 | 2014-11-03 | Fixed-pressure water replenishment device of heat exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410602994.4A CN104848380A (en) | 2014-11-03 | 2014-11-03 | Fixed-pressure water replenishment device of heat exchange unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104848380A true CN104848380A (en) | 2015-08-19 |
Family
ID=53848226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410602994.4A Pending CN104848380A (en) | 2014-11-03 | 2014-11-03 | Fixed-pressure water replenishment device of heat exchange unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104848380A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910350A (en) * | 2016-05-31 | 2016-08-31 | 山东中瑞新能源科技有限公司 | Integration hydrodynamic force transportation and distribution system |
| CN106759636A (en) * | 2016-12-29 | 2017-05-31 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of softened water and condensed water complementary type technique hot water water charging system |
| CN112235997A (en) * | 2019-07-15 | 2021-01-15 | 北京百度网讯科技有限公司 | Cold water system for data center refrigeration |
-
2014
- 2014-11-03 CN CN201410602994.4A patent/CN104848380A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910350A (en) * | 2016-05-31 | 2016-08-31 | 山东中瑞新能源科技有限公司 | Integration hydrodynamic force transportation and distribution system |
| CN106759636A (en) * | 2016-12-29 | 2017-05-31 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of softened water and condensed water complementary type technique hot water water charging system |
| CN112235997A (en) * | 2019-07-15 | 2021-01-15 | 北京百度网讯科技有限公司 | Cold water system for data center refrigeration |
| CN112235997B (en) * | 2019-07-15 | 2023-07-21 | 北京百度网讯科技有限公司 | Cold water system for refrigerating data center |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104848295A (en) | Self-adaption intelligent heat exchange station | |
| CN104848294A (en) | High-temperature-water heat exchange low-temperature-water direct connection heating system | |
| CN104848380A (en) | Fixed-pressure water replenishment device of heat exchange unit | |
| CN203741932U (en) | Secondary water supply system for pipe network overlying self-supply water tank | |
| CN104848298A (en) | Double-source closed type heat exchange unit | |
| CN104846883A (en) | Pot-type pressure-superposed water supply device with small-flow auxiliary pump for energy saving | |
| CN104846881A (en) | Non-negative pressure pipe network pressure-superposed water supply control device | |
| CN104848327A (en) | Geothermal water combined water source heat pump heating circulation system | |
| CN201354770Y (en) | Cooling water circulation device for pumps | |
| CN205367782U (en) | Imitate intelligent level pressure moisturizing degasification unit by force | |
| CN104848301A (en) | Geothermal heat supply hot water circulating system | |
| CN101775827A (en) | Automatic constant-pressure variable boosting water feeder | |
| CN206233297U (en) | Integrated homemade well water source module negative pressure-free pipe network Pressure-superposed water supply equipment | |
| CN104846946A (en) | Energy-saving no-negative-pressure direct-connected water supply equipment | |
| CN204806758U (en) | Circulative cooling water supply system outside hydroelectric power plant | |
| CN104846937A (en) | Pipe network pressure-superposed water supply equipment with auxiliary energy-saving small-flow pump | |
| CN104746554A (en) | Pipe network pressure-superposed self-contained well secondary water supply system | |
| CN104746576A (en) | Water tank adjustment and storage variable voltage transformation pipe network pressure-superposed water supply device | |
| CN104848381A (en) | Water replenishment device of running water pipe network superposed-pressure and fixed-pressure heat exchange unit | |
| CN203741933U (en) | Secondary water supply system for pipe network overlying self-supply well | |
| CN104846958A (en) | Non-negative-pressure pressure-superposed constant pressure water supplementing device for heat exchanger unit | |
| CN201762762U (en) | Constant pressure type non-negative pressure water supply equipment | |
| CN104848362A (en) | Solar hot water concentrated supply system | |
| CN104848349A (en) | Solar heating heat-exchange unit | |
| CN104848319A (en) | Geothermal water heating circulation system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150819 |