CN207299618U - Source of sewage self-cleaning dry evaporator - Google Patents
Source of sewage self-cleaning dry evaporator Download PDFInfo
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- CN207299618U CN207299618U CN201720953606.6U CN201720953606U CN207299618U CN 207299618 U CN207299618 U CN 207299618U CN 201720953606 U CN201720953606 U CN 201720953606U CN 207299618 U CN207299618 U CN 207299618U
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Abstract
It the utility model is related to a kind of source of sewage self-cleaning dry evaporator, including housing and tube body, tube body, which is connected in housing, forms tube side, shell side is formed between inner walls and tube body, the both ends of tube body are respectively the import and export of tube side, the both ends of housing are respectively equipped with the import and export of unicom shell side, and solenoid valve, shell side import connection chilled water pump are separately installed with shell side import and export；In housing nozzle for flow dismounting plate is separately installed with along the length direction of tube body, shell side is divided into broken line passage by nozzle for flow dismounting plate, it is characterized in that, case top is provided with the spaced feed water valve connecting seat of an at least row along shell length direction, water supply electromagnetic valve, the input terminal connection feed pipe of each water supply electromagnetic valve are separately installed with each feed water valve connecting seat；Housing bottom is correspondingly arranged on several rows of dirty valve connecting seat, is provided with blowoff electromagnetic valve on blowdown valve connecting seat, each blowoff electromagnetic valve output terminal connects blow-off pipe respectively.
Description
Technical field
It the utility model is related to A/C evaporator field, and in particular to a kind of source of sewage self-cleaning dry evaporator.
Background technology
In recent years since coal changes the implementation energetically of electric policy, in the Yangtze river basin particularly Basin of Huaihe River, Yellow River basin, family is used
And commercial winter heating equipment batch is changed to air-source, source heat-pump air conditioner group from coal-fired, fuel-oil or fuel-gas boiler, compares pot
Furnace heating system, environmental benefit is notable, energy-efficient, stable and reliable operation, a tractor serves several purposes can have a wide range of application（Winter takes hot confession
Warm, summer heat extraction refrigeration, whole year take heat supply domestic hot-water）, investment operating cost it is low.Since wherein quite a few is to utilize
Municipal sewage（Industrial wastewater, sanitary sewage）Although being equipped with sewage pre-treatment device before in sewerage, prevent from exchanging heat
Sewage in heat exchanger tube surface scale, causes heat transfer coefficient to decline to device after long-term use, and heating refrigeration effect reduces, air-conditioning system
Effective measures are had no in terms of power consumption increase at present.
Dry evaporator, as the term suggests dry evaporator is to directly control liquid system by heating power expansion valve or electric expansion valve
For cryogen into the tube side of people's evaporator, refrigerant liquid is completely transformed into gas in pipe, and is cooled（Heating）Medium then exist
Flowed in shell side outside heat exchanger tube.Shell side is equipped with baffle plate, for changing fluid flow direction, often is used to design in dry evaporator
Shell side medium runner, can both improve heat-transfer effect, also act as the effect of support tube bank.According to medium character and flow and change
Hot device size determines the quantity of baffle plate, and baffle plate routinely has two kinds of arch and spiral shape.Heat exchanger tube is tubular vertical bar shaped and U-shaped
Two kinds.
The shell side medium runner formed between the housing of conventional dry evaporator, baffle plate and heat exchanger tube only has a water inlet
Mouth, a water outlet, one to two exhaust outlet and one or two sewage draining exit are communicated with the external world.Source of sewage dry evaporator is due to shell side
The dirty characteristic of medium, easily in heat exchanger tube surface scale, has an impact the normal use of equipment, including set refrigeration air-conditioner
Standby failure, refrigeration（Heat）Efficiency declines, energy consumption increase, and device alarm can be caused to shut down when serious, or even triggers serious accident, therefore
Need frequently to clean shell side medium runner.
Exchange heat tube dry type evaporator for vertical bar shaped, since tube sheet and cylinder are the permanent connection of welding, physics or machine
Tool cleaning means cannot be cleaned into shell side medium runner, generally can only be by means of chemical cleaning medicament, but use chemistry
Cleaning agent can carry out secondary pollution to shell side medium belt（Chemical cleaning medicament most of is all poisonous and harmful product, they or in alkali
Property or in acidity, or containing carcinogenic substance, fluoride, or cause the rise of the COD (chemical oxygen consumption (COC)) in water body）.
, can be by core since tube sheet and cylinder are that the non-permanent of fastener connects for U-shaped heat exchange tube dry type evaporator
Body is extracted out from housing, is cleaned using physics or mechanical cleaning instrument into shell side medium runner, but is needed to dismantle and steamed
Device main body is sent out, it is necessary to the supply opening gas returning port of the refrigerant inlet and outlet of evaporator tube side and refrigeration air-conditioning unit be departed from, this leads
The discharge of freon refrigerant in refrigeration air-conditioner has been caused, has brought secondary pollution（Freon refrigerant is to atmospheric ozone layer meeting
Damage, and aggravate greenhouse effects）.
So conventional dry evaporator cannot carry out clearly shell side medium runner on the premise of secondary pollution is not caused
Wash.
The content of the invention
The purpose of this utility model is to provide a kind of evaporator mechanism being suitable for using sewage as low-temperature receiver, the evaporator
Source of sewage dry evaporator shell side medium runner can be cleaned on the premise of secondary pollution is not caused, can be conveniently fast
The prompt efficient dirt for removing heat exchange pipe surface bonding, improves the heat exchange efficiency of dry type heat exchanger.
To achieve the above objectives, the technical solution that the utility model is taken is：
Source of sewage self-cleaning dry evaporator, including housing and tube body, tube body, which is connected in housing, forms tube side, in housing
Shell side is formed between wall and tube body, the both ends of tube body are respectively the import and export of tube side, and the both ends of housing are respectively equipped with unicom shell side
Import and export, solenoid valve, shell side import connection chilled water pump are separately installed with shell side import and export；Along the length of tube body in housing
Direction is separately installed with nozzle for flow dismounting plate, and shell side is divided into broken line passage by nozzle for flow dismounting plate, it is characterised in that case top is along shell length side
To the spaced feed water valve connecting seat of an at least row is provided with, water supply electromagnetic valve is separately installed with each feed water valve connecting seat,
The input terminal connection feed pipe of each water supply electromagnetic valve；Housing bottom is correspondingly arranged on several rows of dirty valve connecting seat, blowdown valve connection
Blowoff electromagnetic valve is installed on seat, each blowoff electromagnetic valve output terminal connects blow-off pipe respectively.
Further, at least provided with a blowoff electromagnetic valve and a water supply electromagnetic valve between every two panels nozzle for flow dismounting plate.
Further, ultrasound wave descaling device is installed between feed pipe and each water supply electromagnetic valve, each blowdown valve connecting seat with
Ultrasound wave descaling device is installed between corresponding blowoff electromagnetic valve.
Further, case top is equipped with two rows of feed water valve connecting seats, and two rows of feed water valve connecting seats are distributed in case top
Both sides, and be in 30 ° of angles with the vertically symmetrical plane of housing.
Further, the clean water supervisor and two clean waters that the feed pipe includes being arranged in parallel are in charge of, clean water master
The both ends of pipe are in charge of through threeway with clean water respectively to be connected, and each clean water is in charge of one row's water supply electromagnetic valve of corresponding connection, clean water
Supervisor's connection high-pressure hydraulic pump.
Further, the end of the blow-off pipe is connected with water quality testing meter, and the inlet and outlet of shell side are separately installed with pressure difference
Sensor, the inlet and outlet of tube side are separately installed with temperature sensor and pressure sensor.
Further, evaporator is connected with control system, the solenoid valve, blowoff electromagnetic valve, water supply electromagnetic valve, high pressure water
Pump, water quality testing meter, differential pressure pickup, temperature sensor and pressure sensor are electrically connected with control system.
The control method of the source of sewage self-cleaning dry evaporator, control process include：（1）Air-conditioning system normal operation
When, the hydraulic pressure gap sensor of shell side, the temperature sensor of tube side and pressure sensor respectively to control system return signal, when
Freezing differential water pressures are more than the degree of superheat T of preset value △ P or evaporator in shell sideOverheatMore than setting value △ T meet wherein one or
At two, system performs following action successively：Air-conditioner host delay is shut down, chilled water pump delay switching-off, the inlet and outlet electricity of shell side
Magnet valve time-delay closing, all ultrasound wave descaling devices start and the operation that is delayed, and high-pressure hydraulic pump is opened and the operation that is delayed, water supply electromagnetism
Valve hydroblasting, blowoff electromagnetic valve open blowdown, and sewage flows into sewage pipe, and sewage pipe end water quality testing meter is to sewage detection；
(2) when water quality testing meter detection water quality is below standard, continue to clean；When water quality testing meter water quality detection is up to standard, perform successively
Act below：High-pressure hydraulic pump is closed, and water supply electromagnetic valve and blowoff electromagnetic valve are closed；The inlet and outlet solenoid valve of shell side is opened；Freezing
Water pump is opened, air-conditioner host start；The hydraulic pressure gap sensor of shell side, the temperature sensor of tube side and pressure sensor continue to
Control system return signal.
Further, realized and be delayed by time-delay relay, delay time 10s-60s.
After taking above technical scheme, the beneficial effects of the utility model are：
System according to measure differential water pressures △ P or suction superheat T overheat with setting value automatically compared with, judge meet cleaning
After beginning condition, it is automatically stopped unit operation and turns off chilled water circuit, opens cleaning water route and carry out descaling rinsing work, cleaning
After the completion of, after water quality testing meter judges to meet cleaning termination condition, scavenger circuit is automatically closed, opens chilled water circuit, into
Enter normal refrigeration（Heating）Operation, the degree of automation is high, without manual intervention.Without using chemical cleaning medicament, shell side will not be given
Medium belt carrys out secondary pollution.Vaporizer body need not be dismantled, the discharge of freon refrigerant in refrigeration air-conditioner will not be caused,
If atmospheric ozone layer can be damaged, greenhouse effects will not be aggravated.After heat exchanger tube surface clean is clean, refrigeration（Heat）Efficiency
Improve, energy consumption reduction, equipment operating cost can be reduced, have higher economic benefit, achieve energy-saving and emission reduction purposes.
Brief description of the drawings
Fig. 1 is the front view of the utility model；
Fig. 2 is the left view of the utility model；
Fig. 3 system flow charts in order to control.
In figure：Housing 1, tube body 2, solenoid valve 3, nozzle for flow dismounting plate 4, feed water valve connecting seat 5, water supply electromagnetic valve 6, clean water is in charge of
7, connect clean water supervisor 8, blowdown valve connecting seat 9, blowoff electromagnetic valve 10, blow-off pipe 11, water quality testing meter 12, ultrasound wave descaling dress
Put 13.
Embodiment
Specific embodiment of the present utility model is further described below in conjunction with attached drawing：
As shown in the figure, source of sewage self-cleaning dry evaporator, including housing 1 and tube body 2, tube body 2 are connected to shape in housing 1
Into tube side, shell side is formed between 1 inner wall of housing and tube body 2, the both ends of tube body are respectively the import and export of tube side, and the both ends of housing are divided
Not She You unicom shell side import and export, solenoid valve 3, shell side import connection chilled water pump are separately installed with shell side import and export；
Nozzle for flow dismounting plate 4 is separately installed with along the length direction of tube body in housing, shell side is divided into broken line passage by nozzle for flow dismounting plate 4.
The top of housing 1 is equipped with two rows of feed water valve connecting seats 5, and two rows of 5 connecting seats of feed water valve are distributed in the both sides of case top,
And with the vertically symmetrical plane of housing it is in 30 ° of angles；Water supply electromagnetic valve 6 is separately installed with each feed water valve connecting seat, each row supplies
The input terminal of water solenoid valve 6 connects a clean water and is in charge of 7；The both ends that two clean waters are in charge of 7 connect cleaning by threeway respectively
Water supervisor 8, the middle water inlet connection high-pressure hydraulic pump of clean water supervisor 8.
Housing bottom is correspondingly arranged on several rows of dirty valve connecting seat 9, and blowoff electromagnetic valve is provided with blowdown valve connecting seat 9
10, each 10 output terminal of blowoff electromagnetic valve connects blow-off pipe 11 respectively.The end of blow-off pipe is connected with water quality testing meter 12, shell side
Inlet and outlet are separately installed with differential pressure pickup, and the inlet and outlet of tube side are separately installed with temperature sensor and pressure sensor.
In order to which the dirt cleaning down in shell side is clean, between the adjacent nozzle for flow dismounting plate of every two panels at least provided with
One blowoff electromagnetic valve connecting seat 9 and a water supply electromagnetic valve connecting seat 5, it is ensured that can effectively be rinsed between the adjacent nozzle for flow dismounting plate of each two and
Discharge.
In order to avoid water supply electromagnetic valve 6 and blowoff electromagnetic valve 10 are blocked by spot, it is in charge of 7 and each water supply electromagnetism in clean water
Ultrasound wave descaling device 13 is installed between valve 6, ultrasound is installed between each blowdown valve connecting seat 9 and corresponding blowoff electromagnetic valve 10
Ripple apparatus for eliminating sludge 13.
The evaporator of the technical program is connected with control system, the solenoid valve, blowoff electromagnetic valve, water supply electromagnetic valve, height
Water pump, water quality testing meter, differential pressure pickup, temperature sensor and pressure sensor are electrically connected with control system.Control
System uses the classical control system that airconditioning control uses, and for different control content or control method, changes corresponding control
Processing procedure sequence.
The control method of the source of sewage self-cleaning dry evaporator, control process include：（1）Air-conditioning system normal operation
When, the hydraulic pressure gap sensor of shell side, the temperature sensor of tube side and pressure sensor respectively to control system return signal, when
Freezing differential water pressures are more than the degree of superheat T of preset value △ P or evaporator in shell sideOverheatMore than setting value △ T meet wherein one or
At two, system performs following action successively：Air-conditioner host delay is shut down, chilled water pump delay switching-off, the inlet and outlet electricity of shell side
Magnet valve time-delay closing, all ultrasound wave descaling devices start and the operation that is delayed, and high-pressure hydraulic pump is opened and the operation that is delayed, water supply electromagnetism
Valve hydroblasting, blowoff electromagnetic valve open blowdown, and sewage flows into sewage pipe, and sewage pipe end water quality testing meter is to sewage detection；
(2) when water quality testing meter detection water quality is below standard, continue to clean；When water quality testing meter water quality detection is up to standard, perform successively
Act below：High-pressure hydraulic pump is closed, and water supply electromagnetic valve and blowoff electromagnetic valve are closed；The inlet and outlet solenoid valve of shell side is opened；Freezing
Water pump is opened, air-conditioner host start；The hydraulic pressure gap sensor of shell side, the temperature sensor of tube side and pressure sensor continue to
Control system return signal.
Delay during this control is realized by time-delay relay to be delayed, delay time 10s-60s.
Claims (7)
1. source of sewage self-cleaning dry evaporator, including housing and tube body, tube body, which is connected in housing, forms tube side, inner walls
Shell side is formed between tube body, the both ends of tube body are respectively the import and export of tube side, and the both ends of housing are respectively equipped with unicom shell side
Import and export, solenoid valve, shell side import connection chilled water pump are separately installed with shell side import and export；Along the length of tube body in housing
Direction is separately installed with nozzle for flow dismounting plate, and shell side is divided into broken line passage by nozzle for flow dismounting plate, it is characterised in that case top is along shell length side
To the spaced feed water valve connecting seat of an at least row is provided with, water supply electromagnetic valve is separately installed with each feed water valve connecting seat,
The input terminal connection feed pipe of each water supply electromagnetic valve；Housing bottom is correspondingly arranged on several rows of dirty valve connecting seat, blowdown valve connection
Blowoff electromagnetic valve is installed on seat, each blowoff electromagnetic valve output terminal connects blow-off pipe respectively.
2. source of sewage self-cleaning dry evaporator according to claim 1, it is characterised in that between every two panels nozzle for flow dismounting plate extremely
A blowoff electromagnetic valve and a water supply electromagnetic valve are provided with less.
3. source of sewage self-cleaning dry evaporator according to claim 1, it is characterised in that feed pipe and each water supply electromagnetism
Ultrasound wave descaling device is installed, each blowdown valve connecting seat is with being provided with ultrasound wave descaling dress between corresponding blowoff electromagnetic valve between valve
Put.
4. source of sewage self-cleaning dry evaporator according to claim 1, it is characterised in that case top is equipped with two rows of supply
Water valve connecting seat, two rows of feed water valve connecting seats are distributed in the both sides of case top, and are pressed from both sides with the vertically symmetrical plane of housing in 30 °
Angle.
5. source of sewage self-cleaning dry evaporator according to claim 1, it is characterised in that the feed pipe includes parallel
The clean water supervisor of setting and two clean waters are in charge of, and the both ends of clean water supervisor are in charge of through threeway with clean water respectively to be connected,
Each clean water is in charge of one row's water supply electromagnetic valve of corresponding connection, clean water supervisor's connection high-pressure hydraulic pump.
6. source of sewage self-cleaning dry evaporator according to claim 1, it is characterised in that the end of the blow-off pipe connects
Water quality testing meter is connected to, the inlet and outlet of shell side are separately installed with differential pressure pickup, and the inlet and outlet of tube side are separately installed with temperature biography
Sensor and pressure sensor.
7. the source of sewage self-cleaning dry evaporator according to claim 1-6 any one, it is characterised in that evaporator connects
Be connected to control system, the solenoid valve, blowoff electromagnetic valve, water supply electromagnetic valve, high-pressure hydraulic pump, water quality testing meter, differential pressure pickup,
Temperature sensor and pressure sensor are electrically connected with control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953606.6U CN207299618U (en) | 2017-08-02 | 2017-08-02 | Source of sewage self-cleaning dry evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720953606.6U CN207299618U (en) | 2017-08-02 | 2017-08-02 | Source of sewage self-cleaning dry evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207299618U true CN207299618U (en) | 2018-05-01 |
Family
ID=62448323
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720953606.6U Active CN207299618U (en) | 2017-08-02 | 2017-08-02 | Source of sewage self-cleaning dry evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207299618U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401858A (en) * | 2017-08-02 | 2017-11-28 | 江苏世林博尔制冷设备有限公司 | Source of sewage self-cleaning dry evaporator and control method |
-
2017
- 2017-08-02 CN CN201720953606.6U patent/CN207299618U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107401858A (en) * | 2017-08-02 | 2017-11-28 | 江苏世林博尔制冷设备有限公司 | Source of sewage self-cleaning dry evaporator and control method |
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