DE19600673A1 - Heat pump for open-air swimming pools - Google Patents

Abstract

The heat pump is especially made in modular fashion for open-air swimming pools and is manufactured with a plug. By using one or other or both of the two modules, the load regimes can be "assigned" particularly to conventional pool sizes. Using solar technology, the capacity of the heat pumps is available at any time. Heating can be done at night. Eco-friendly coolant which does not damage the ozone layer can be used. A regenerative energy source is installed. No machine house or water pump inlet basin needs to be built, or solar mats needed. Only an electric cable is required.

Description

1. TECHNICAL DESCRIPTION

The heating of outdoor pools is an alternative to existing ones fossil fuels and / or solar energy use with egg ner heat pump system provided. The one used for this The refrigerant is ammonia (NH3).

Installation of the refrigeration equipment (heat pump) according to the state of the art is part of the An weary.

The application is divided into the following areas:

• 1. Basics for installing the NH3 heat pump
  • - General
  • - Functional description
  • - Basis of interpretation
  • - Create documentation.
• 2. Design of plug-in compact heat pump according to the state of the art in modular design especially for outdoor pools:
  • a) Compact heat pump
    • - Installation of heat pump evaporator / accessories
    • - Installation of open NH3 compressors / accessories
    • - Installation of NH3 / water plate condenser
    • - Delivery / assembly of electrical control cabinet with PLC
  • b) Safety requirements for compact heat pumps
    • - WP components on base frame / in housing
    • - Installation of NH3 pipe supports DIN 8975
    • - Test DIN 8975 part 4 and 5, Druckbeh.V.
    • - pH value measurement + gas warning system according to BImSchG.

execution READY-TO-CONNECT COMPACT HEAT PUMP ACCORDING TO THE TECHNOLOGY IN MODULAR DESIGN SPECIALLY FOR OUTDOOR POOLS 1. General 1.1 Initial situation regarding immission control

The heat pump is designed as a compact cooling unit for heating free serve baths. The refrigeration system capacity is less than 200 kg amount (minor filling quantity according to BImSchG)!

The refrigeration system is a system that controls the type has to meet the requirements of the "state of the art". In the attached application are all related to NH3 refrigeration the requirements, in the form of a catalog of measures for the Be drivers of such a system.

1.2 Scope of testing

On my own, I checked to what extent these ammonia Refrigeration system as a heat source (heat pump / WP) compared to one conventional heating has advantages. Also should be a measure catalog of the state of security technology nik of an NH3 refrigeration system.

1.3 Claim

For subsequent components that relate to NH3 refrigeration, no claim should exist. All components could Specialist suppliers. A claim exists the entire unit and its designs (plug-in system)!

1.4 Basics of execution

• - Safety of machines, devices and plants
• - General principles for design (EN 292)
• - refrigeration systems accident prevention regulation, Heat pumps u. Cooling devices (UVV VBG 20)
• - Installation of refrigeration systems (DIN 8975 part 1 to part 10)
• - refrigeration systems and heat pumps, security tech niche u. environmentally relevant requirements (DIN)
• - Pressure vessel regulation

1.5 Conducting examinations

For Ener, the specialist literature and professional experience have become the creation of the necessary concept, etc. I work professionally as a refrigeration master.  

1.6 Technical purpose of the refrigeration system

The refrigeration system is used to heat outdoor pools. Due to the favorable thermodynamic properties of the refrigerant ammoni ak (NH3) is best suited for heating an NH3 heat pump.

1.7 Functional description of the refrigeration system COMPACT HEAT PUMP IN MODULAR DESIGN SPECIALLY FOR OUTDOOR POOLS

It is intended to take outside air by means of finned air evaporators cool down and the heat extracted from the outside air for heating the respective pools of an outdoor pool by means of plate heating to give up again.

The environmentally neutral refrigerant is used to cool the outside air tel ammonia (NH3) used. Ammonia is a substance that is also found in pure form occurs in nature.

With an average in the bathing season from mid-May to September prevailing air temperature of + 14 ° C (22⁰⁰ evening until 6⁰⁰ early) the cooling (heating) by opening the on Spray solenoid valves (control via PLC) switched on. The Evaporation temperature of the refrigerant in the evaporators set at + 7.5 ° C. Can be used to heat the swimming pool thus the favorable night electricity tariff can be fully used. At the the following days the swimming pools are at the set temperature heated to + 27 ° C.

The swimming pools are created by releasing the heat of condensation plate capacitors to the pool water at a con temperature of + 35 ° C (NH3) and temp. water "entry" + 24 ° C or temp. Water "outlet" + 29 ° C to the target temperature level of + 27 ° C.

Should the air temperature be due to bad weather conditions + 12 ° C (22⁰⁰ evening to 6⁰⁰ early), the Cooling (heating) by closing the injection solenoid valves (Control via PLC) switched off. The evaporation temperature the refrigerant in the evaporators will otherwise be too low. There this would reduce the efficiency of the heat pump.

In such weather conditions, however, no bathers are expected. It is therefore not necessary to heat the swimming pools!
A modular design is planned (module 1 and module 2) in order to be able to cover the respective performance ranges with plug-in modules.

For energy reasons (ENERGIEKON ZEPT), the heat pump was designed so that all electrical consumers and other heat-emitting components (e.g. condenser) are installed in the air intake flow to the evaporator part. The performance figure of the heat pump can be improved even further. The additional waste heat can be absorbed by the NH3 evaporator and released into the bath water accordingly. There are no energy losses!
The air evaporators are installed in a vertical position or air duct so that the condensation water droplets that occur when the outside air cools can be removed more easily from the cooling fins of the NH3 evaporators due to the draft. In the case of horizontal installation or air flow, these droplets would "get caught" in the fins due to their specific weight and would only suddenly settle out of the spaces between the fins when the fans were switched off. "Stuck" would reduce the heat exchange area and thus reduce the efficiency of the heat pump.

The following components are required for the refrigerant circuit and are in this application under the heading "Technical Descriptions "detailed:

• - Open-type refrigeration compressor with electric drive motor
• - Slat air evaporator with forced ventilation (fans)
• - Plate condenser with liquid collector (NH3 template)
• - Liquid injection valve / dry expansion (Exp. Valve).

All components listed above are in one steel Complete sheet metal housing with corresponding air inlet openings screwed to a base frame. A complete elec control cabinet with "programmable logic controller" (PLC) and the corresponding program, the heat pump system is on the automatically retract the most favorable operating state. Of the The electrical control cabinet is also integrated in the sheet steel housing freezes.

The "Programmable Logic Controller" (PLC) processes the Si signals from one in the respective pool water circuit gated temperature sensor. From a pool water temperature of + 25 ° C, 50% of the evaporator fans are switched off. Since the Heat demand is lower at this temperature level, too full air output is no longer required. This can considerable energy savings. To freeze the air to avoid reduced evaporator is the NH3 evaporator fer divided into 2 separate cooling circuits and the one on the Air evaporators working refrigeration compressors 50-100% performance regu liert. The "Programmable Logic Controller" (PLC) with correspond corresponding program, the heat pump system will be automatically retract the current operating status. When the The heat pump is switched off at the target temperature level of + 27 ° C.  

In addition, there is an automatic shutdown if there is any Leakage at the plate condensers of the heat pump a pH measurement required in the "state of the art" in Swimming pool water circuit installed. It will be automatic Closure by engine shut-off valves directly in front and behind the water-side connections of the condenser in case of danger for ensures the swimming pool water cycle. A 2 stage gas warning system per module with emergency power supply of at least 3 hours Bridging in the event of a power failure (state of the art) is also possible considered.

The performance data of the heat pump system are as follows:

COMPACT HEAT PUMP SYSTEM IN MODULAR DESIGN Total heat output

Refrigeration cycle + 7.5 ° C / + 35 ° C (heat pump module 1)

Refrigeration circuit + 7.5 ° C / + 35 ° C (heat pump module 1 and 2)

With an above average in the bathing season from mid-May to September prevailing air temperature of + 21.5 ° C (22⁰⁰ evening to 6⁰⁰ early) is the capacity of the cooling (heating) correspond bigger. The evaporation temperature of the refrigerant in the Evaporators will set at + 15 ° C.

In such weather conditions, the heat output is off the following performance data. The interpretation the capacitors is basically on the maximum power he conducive!

Total heat output

Refrigeration circuit + 15 ° C / + 35 ° C (heat pump module 1)

Refrigeration cycle + 15 ° C / + 35 ° C (heat pump module 1 and 2)

The heat pump system then consists essentially of the following Components (per module):

2. EXECUTION Technical description finned evaporator for ammonia execution 1.1 HEAT PUMP FLANGE EVAPORATOR (CODE 01) Execution:

Ammonia evaporator series S-WAV 091/2 × 3 S (D) series
Finned heat exchanger in sheet steel housing design:

Structure / function

The evaporation of the refrigerant NH3 is by means of 1 piece Finned heat exchanger with forced ventilation using achieved by axial fans.

The heat exchanger is a two-circuit system evaporator subscribed.

The complete module is installed outdoors. In the sheet steel housing there are no evaporators some other necessary components such as compression ter, capacitor, electrical cabinet etc.

The evaporator is vertical for optimal airflow mounted with the sheet steel housing with a U-frame.

As a result, the air inlet cross-sectional area is ent according to the required installation location placed.

However, it is in the area of the installation site of the module it (evaporator part) corresponds to the adjacent tree population to edit accordingly.

A free blow-off cross-section must be guaranteed!

This work must be carried out on site by the operator be performed.  

Due to the energy concept (waste heat utilization of the devices) and the adjacent public traffic become the Venti lators (total 06 pieces) in the air inlet, d. H. in steel sheet metal housing supplied in "pushing" version. The maximum sound pressure level of the fans at Vol load of the drive motors is approx. 54 dB (A), ge Set the measurement at a distance of 5 m.

An ambient temperature was used to design the heat exchanger temperature (air inlet temperature) of approx. 14 ° C placed.

The self-supporting pipe package system of the heat also contributes to this The following advantage (not subject to patient claim): With this evaporator version all refrigerants are used side, pressure-stressed core tubes of the evaporator with the front and support plates of the component not di directly related.

Of course, this affects the service life of the components subject to pressure.

To identify the respective operating situation, each fan indicator lights such as: "In operation", "Except loading drive "and" fault "integrated in the electrical control cabinet.

Technical description finned evaporator

1 piece of heat pump evaporator
Type: S-WAV 091/2 × 3 S (D)
(D) delta connection
S = core tubes made of 1.4541 (V 4 A) installation in sheet steel housing and with grille cladding
Fans with two speeds and thermal contacts, suitable for stepless speed control.
Technical data per device:

Technical description refrigeration compressor execution 1.2 PISTON COMPRESSOR (CODE 02) execution

1 piece of refrigeration compressor of the series W6 GA-KG,
open design for refrigerant ammonia (NH3),
with start relief and with check valve,
single-stage compression,
Power regulation 50/100%

Reciprocating compressors with air-cooled cylinder heads.

Cooling capacity: 155 KW / 205 KW
Regime (t₀) + 7.5 ° C / + 15 ° C
Regime (t _c ) + 35 ° C / + 35 ° C
Power requirement on the shaft: 23 KW / 25 KW
Compressor speed / shaft: 1450 min ^-1
directly coupled start relief solenoid valve

Electric motor drive:
Motor power: 30 KW
Engine speed: 1450 min ^-1
Design: 35 IMB
Voltage: 380 V / 50 Hz
Degree of protection: IP 54

Structure / function

Single-phase AC compressor / 6-cylinder design in W design, housing made of gas-tight special casting, air cooled cylinder covers u. Oil cooling, oil heating, replacement selectable suction gas-cooled cylinder liners, Druckum lubrication by oil pump, oil level control, oil drain valve, double mechanical shaft seal, pressure oil cools, suction manifold and pressure collector, built-in Si safety valve. The compressor is sprayed with paint, dried and filled with protective gas.

Accessories per refrigeration compressor:
Coupling flywheel with elastic coupling and coupling protection
Base frame for refrigeration compressors and electric motors - for clutch drives
automatic start relief m. Solenoid valve between pressure and suction side Weld shut-off valve suction and pressure connection
Suction pressure gauge
Pressure gauge
Medium pressure manometer
Oil pressure gauge for oil pump
Oil pressure gauge for stuffing box
Pressure pipe thermostat
Operating thermometer for pressure line
Operating thermometer for suction line
Differential pressure switch for oil pressure
Differential pressure switch for oil filters
Pressure limiter
Safety pressure limiter
Vacuum switch
Pressure gauge holder with shut-off valves
Dashboard with shut-off valves
Operating filling of refrigerating machine oil

Technical description plate capacitor execution 1.3 NH3 / H2O PLATE CAPACITOR (CODE 03)

TL 250 series
Plate heat exchanger, cassette-welded design:
Consisting of heat-transfer plates, pressed together using a clamping bolt between the tripod and pressure plate and fixed to the upper and lower support rods.

The plates are cassettes on the refrigerant side welded together. The refrigerant ammonia only comes with the two ring seals on the passages between in contact with the welded cassettes.

The ring seals are attached without glue and are easily interchangeable.

The process side is conventional with elastomer seals sealed.

Painted steel frame with TÜV approval.

The device is pressure tested, dried and with a Nitrogen protective gas filling filled.

Design basis: at max. Qo power 205 KW = Qc 270 KW included!

Technical description Liquid collection container 1.4 NH3 LIQUID COLLECTOR (CODE 04)

AL pressure vessel series: ⌀ 400 mm × 1200 mm = 150 ltr.

NH3 collecting tank in a horizontal version consisting of a steel jacket pipe according to AD leaflet W1 / H3, DIN 17155 and DIN 50049 and DIN 28001.

Material according to standard HII with factory acceptance test certificate 3.1B. Steel jacket pipe made of welded boiler plate.

Welded-on bobbin lace according to DIN 50049 and DIN 28011, Material according to standard HII with factory acceptance test certificate 3.1B. Pattern bottom made of drawn boiler plate, form VA, (with guaranteed wall thicknesses in the brim area).

Spigot with flanges and counter flanges for refrigerants Entry, exit, liquid level indicator, security Valve and oil drain valve connection to the oil sump NH3 collector made of quality steel tube, seamless, according to DIN 2448, St 37.0, Steel welding neck flanges according to DIN 2634/35, PN 40, m. N + F, technical delivery conditions according to DIN 1629, steel pipes with factory acceptance test certificate or factory certificate 3.1B and 2.2.

Also include tubes pretreated (sandblasted) Applying an anti-corrosion coating (e.g.  Primary chemolacquer, type GS 170/62). Inside of the pipe stains and neutralizes.

The nozzles on the container are closed with blind washers. Depending on requirements, with reinforcement ring, sheet according to DIN 1543, norm HII, Containers with feet made of angle steel according to DIN 1028.

Welding execution according to evaluation group DIN 85 63 BK, BS, in MAG, TIG or MIG welding process, perm.over tension the weld 85% according to AD.

Labor and non-destructive testing according to AD HP 5/2 u. 3rd Pressure and leak test, load case n.AD-W10. All Welding and burning points are made before application d. Anti-corrosion paint (zinc phosphate paint on the outside) treated.

Apparatus with inert gas filling, built after pressure tank V. with TÜV certification.

Technical description NH3 level controller execution 1.5 NH3 LEVEL INDICATOR (CODE 05)

consisting of:
Closed level indicator with level sensor for NH3 tanks

Structure / function

The level is determined by the weight of a rod in the medium. The weight depends on the drive, ie the specific weight of the liquid and the level. The medium and the medium temperature are specified in order to be able to calibrate the device. The weight is measured with a spring balance, which is scanned without contact. The output signal is 4. . . . 20 mA. In the case of moving liquids (such as NH3 collectors), the displacer is provided with a protective tube so that it is not exposed to the currents. A reference vessel DN 20 PN 40 with the appropriate center distance / connecting pipes from the tank is used for external installation. Center distances of level controller connections acc. Collectors!
Electronic level transmitter NI 1312, PN 40 with in positive displacement weight measurement calibrated for the medium ammonia at temperature down to -15 / -43 degrees C, for the continuous measurement of the liquid level such as B. in collectors, abund. Evaporators and liquid separators.

• - linear measuring range 200 mm-4000 mm
• - wear-free, inductive scanning of the displacer
• - Output signal 4. . . 20 mA direct current
• - Without bushings in the pressure room
• - compact design, robust design

for flange connections according to DIN 2634/35 on existing Liquid separators with the dimensions: DN 20 / ⌀26.9.

Technical specifications

Nominal pressure: PN 40
Temp. Max. 250 ° C (medium)
Temp.min .: -50 ° C (medium)
Max pressure: 32 bar
Exit: 4. . . 20 mA
Max load: 400 ohms
Linearity error: max. 2%
Power supply: 16. . . 24 V, approx. 50 mA
Degree of protection: IP 54
Ambient temp .: max. 60 °

All components in contact with the medium ammonia Stainless steel material DIN 17440 Cr Ni according to AD Leaflet W2, austenitic steel St.1.4571.

Connection flanges DN 20
according to DIN 2635 with spring! PN 40 (F)

2 pieces of through-weld fittings in cap design according to DIN 3158.9.7, Conformity to standards according to DIN 3158, Shut-off function, P max. = 40 bar DN 20

2 pieces counter flange DN 20
Steel grade 37.0, C 22.3 according to DIN 2635 with groove according to DIN 2512 PN 40 (N)
2 sets of screws and seals.

Connections to maintenance or repairs purpose:

1 piece vent plug 1/2 ′ ′
1 piece of oil connection on the side! 1/2 ′ ′
including assembly material, pipes and fittings.

Technical description of expansion valves execution 1.6 EXPANSION VALVES (CODE 06)

consisting of:
2 thermostatic expansion valves with external pressure compensation for evaporator dry expansion operation.

Structure / function

The principle of control is based on the fact that a membrane passes through a sensor with special gas filling (on the intake port of the Evaporator attached) a throttle bore depending on the suction temperature more or less released by a needle, to let NH3 liquid flow into the evaporator.

By a factory spring preload (counter pressure) due to the special gas filling (suction gas temperature) The resulting pressure becomes the refrigerant from the evaporator fer only overheated from the refrigeration compressor. Thereby the compressor does not become an NH3 liquid when it is sucked in get what else damage to the work valves will lead (this process = dry expansion operation).

This control process takes place periodically in a short time distances, depending on the heat load on the corresponding ver Steam boat. NH3 liquid flows through the throttle bore into the evaporator to get it there by absorbing heat to be able to vaporize.

The expansion valve is ge with external pressure equalization manufactures to the pressure loss in the evaporator tubes compensate. As a result, the ammonia liquid can Evaporator tubes as far as possible (except for the over heating section).

2 expansion valves, type TEA 85-33
for welding into the existing liquid injection line to the NH3 evaporator.

Nominal output: 70 KW-110 KW
Evaporation temperature: + 7.5 ° C / + 15 ° C
Nozzle type: 68G6007

1 piece intake manifold sensor (NH3) w. Special gas filling with external pressure equalization 1/4 ′ ′

Connection dimensions: "inlet" ⌀ 18
(Valve lower part) "outlet" ⌀ 20

Mounting kit for intake manifold sensor including assembly material, piping and fittings.

Technical description NH3 fittings execution 1.7 MAGNETIC, SHUT-OFF, CONTROL ARMATURES / CHECK VALVES (CODE 07)

consisting of:

• 1. Solenoid valves with solenoid valve coil in a straight shape with welding connection / welding ends (Magn.-V coil = 230 V)
• 2. Shut-off, control fittings with cap in corner or through shape with welding connection / welding ends.
  Series: T5 shut-off straight form / T6 corner form
  T5R control straight-through / T6R corner shape
• 3. Shut-off, control fittings with cap in corner or through shape with screw connection.
  Series: T34 shut-off straight form / T37 corner form
  T34R standard straight-through form / T37R corner form
  Weight-loaded quick-closing valves with corner handwheel and screw connection / welding nipple D.13 / D.10.
  Series: SA 10 / II gew. bel.
• 4. Check valves with / without damping pistons in the through shape for PRESSURE, LIQUID or SUCTION GAS PIPES.
  Series: T5RUEV

Materials and design

Valve body made of non-porous, gas-tight cast iron GS C 25 with good welding properties.
The weld ends have welded edges.
The valve covers are made of GG 25.
Stuffing box with refrigerant-resistant special plastic packing, which ensures a secure seal over a long period of time when tightened lightly. The valves can be used down to -50 degrees C.

Nominal pressure: 26 bar
Trial print:
48 bar water pressure for strength
25 bar nitrogen under water for tightness, for housing, cone and back seal.

SHUT-OFF ARMATURES FROM DN 200 WITH TÜV ACCEPTANCE ACCORDING TO DVO! Technical description of NH3 pipes execution 1.8 NH3 PIPING (CODE 08)

made of quality steel tube, seamless, according to DIN 2448, St 35.8, technical delivery conditions according to DIN 1629, additionally pre-treated pipes (sandblasted) incl. the application of an anti-corrosion paint (e.g. primary chemolacquer, type GS 170/62). Inside of the pipe stained and neutralized.

All After the Monta ge, but before applying the anti-corrosion paint it, post-treated.

Complete with proportional fittings, pipe clamps and Fastening material.

Delivery all NH3 control lines and / or pressure det load cables with outside diameters from ⌀ 6 mm to  ⌀ 10 mm tube material made of stainless steel DIN 17440 Cr Ni according to AD leaflet W2, austenitic Steel St. 1.4571 (for welding process: B / W connection). Complete with proportional fittings, pipe clamps and Fastening material.

G screw connection set made of stainless steel DIN 17440 Cr Ni according to AD leaflet W2, austenitic Steel St. 1.4571 (through and / or T screw connection) m. Ermeto cutting ring made of aluminum.

Technical description Corrosion protection paint execution 1.9 CORROSION PROTECTION PAINT (CODE 09)

First, the steel surfaces of the steel pipes and Components sandblasted with abrasive in "normal blasting process "according to DIN 55 928, to be achieved with one surface finish according to SA 2 1/2.

The surfaces are then dusted or de-dusted greasy. The anti-corrosion paint to be applied now is structured as follows:

Corrosion protection coating according to DIN 55 928 and AGI Q 151:
Before applying the thermal insulation, a suitable and permanent corrosion protection according to the worksheet AGI Q 151 or according to DIN 18 159 must be provided, so that serious corrosion (surface and pitting corrosion) is avoided.

The paint materials that will continue to be used will work with both the primer and the PU Tolerate foam. Adhesion to the surface and the PU foam is given.

With 3 protective coats, the pore freedom is achieved. (2 primers 60 to 80 µ + 1 top coat with 100 µ) The layer thickness of the finished paint is 180 µ to To be 240 µ.

Corrosion protection coating according to DIN 55 928:

1st base coat

2-component base paint based on epoxy resin, Target layer thickness 40 µ.

2nd base coat

2-component base paint based on epoxy resin, Target layer thickness 40 µ.

Top coat

2-component EP iron mica thick layer top coat nominal layer thickness 160 µ
Total target layer thickness = 240 µ.

Technical description pH measuring device execution 1.10 PH VALUE MEASURING DEVICE (CODE 10)

1 piece of pH value measuring device in the main line for the float pool to NH3 plate condenser series TL 250
1 piece of pH value measuring device in the main line for non-swimmers. for NH3 plate capacitor series TL 250
consisting of:
1 × pH meter
1 × pH measuring electrode
1 × static pressure compensator
1 × KCL storage container
1 × potassium chloride solution
1 × connection cable
1 × assembly kit
consisting of:
1 transmitter for switching and control functions with output for controlling electr. Actuators, function "open-close", with signal "closed" at pH greater than 8 and "open" at pH less than 7.5.
Measuring range pH 1 to 12, with temperature compensation including temperature sensor.
1 measuring cable SN 6 5 m
1 pH combination electrode 0 to 60 ° C application range
1 DLG.

Function / structure

The compactly built pH measuring amplifiers of the type series SEW 7610 are modern control panel devices. The modular measuring amplifier can at any time with additional plug-in cards for proportional control or temperature compensation who retrofitted the.

pH value measuring devices are mainly used for monitoring Bathing water systems against impermissible pH exceeded if this is heated by refrigeration systems (only when using ammonia refrigerant).

The pH measuring device is in the main lines on the secondary side of condensers (1-circuit or 2-circuit Systems) installed.

Installation is in the "bypass system" with pressure compensation on in the main line.

If the max. permissible pH value thanks to built-in engine butterfly valves in the front and Return line of capacitors in connection with the pH meters manufactured an automatic shutter.

The shut-off valves are controlled via the evaluation electronics of the pH value measuring device:
"CLOSE" function: at threshold value ph <8.0 (from pH probe)
Function "OPEN": with threshold value ph <7.5 (from pH probe).

This function structure is the compo for NH3 operation nents according to the "state of the art" required.

Materials and design

Plastic housing,
"digital" display field,
required fasteners for installation in the control cabinet,
Switchable measuring ranges,
Switchable amplifier output with 2 on / off control contacts,
with 2 manual 0 automatic toggle switches,
DIN electrode socket.
Mains voltage: 230 V AC, 50/60 Hz
Current output: 0 / 4-20 mA
Degree of protection: IP 30
incl. EICHSET for the calibration of the pH measuring devices: pH 4-7-9.

Technical description engine H20 shut-off valves execution 1.11 SHUT-OFF ARMATURE AS AUTOMATIC LOCK (CODE 11) FOR SWIMMING POOL TECHNOLOGY (FLAP DESIGN)

consisting of:
Butterfly valve with electric motor drive in straight through form as INTERMEDIATE FLAP for installation in PRESSURE or SUCTION PIPES on the water side for SWIMMING POOL OPERATION.

Function / structure

The intermediate flap is mainly operated as a remote control shut-off valve in the supply and return lines Heat exchangers (condenser / evaporator) installed. The installation of pH value measuring devices is in operation of refrigeration systems with ammonia (chem. NH3) according to the "Stand of technology "required.

The shut-off valve is controlled by a pH value measuring device:
"CLOSE" function: at threshold value ph <8.0 (from pH probe)
Function "OPEN": with threshold value ph <7.5 (from pH probe).

Materials and design:
Housing made of GGG 40,
including counter flanges according to DIN 2633 made of St 37 or PVC, screws and seals,
Valve disc made of stainless steel according to DIN 17440 Cr Ni
according to AD leaflet W2, austenitic steel, material 1.4408 (V4a),
Shaft made of stainless steel according to DIN 17440 Cr Ni according to AD leaflet W2, austenitic steel,
Material 1.4401,
Shaft = two parts,
Face-to-face length according to DIN 3202, KI series. Material seal = sleeve made of EP EPDM, sleeve replaceable,
Option for electric motor drive or other types of actuation,
additional manual operation.

Construction data:
Nominal diameter: DN 100
Nominal pressure: PN 16
Medium: SWIMMING POOL WATER
Electric motor drive (actuator) data:

Drive motor: "Type E 60" series up to DN 150
Construction: drive motor with 2 limit switches, torque and thermal switch,
Voltage: 220 (230) volts / 50 Hz AC
Operating time: 6 sec / 90 °.

Technical description NH3 gas warning system 1.12 GAS WARNING SYSTEM WITH EMERGENCY POWER INPUT (CODE 12) execution

2-stage compact gas warning system consisting of:
Standard device in wall mounting housing for surface mounting, series GW 11 ZR-DK with emergency power input,
3 hours bridging in the event of a power failure.

1 NH3 sensor series MF 40 I-DK f. NH3 including evaluation electronics in the gas detector, each with 1 potential-free changeover output contact, 2 alarm thresholds,
Special housing and seal for the NH3 sensors with maintenance-friendly special connection screw connection for regular inspection work,
Evaluation electronics in the gas detector with potential-free changeover output contact,
220 V, 5 A with monitoring of the sensor cable for wire break and short circuit, locking with alarm memory, release button "R", charger type NNL-12, 12V, charger for surface mounting, stabilized, with battery, incl. Warning light "red", 220 V or signal horn, 100 dB (A), 220 V,
Includes shielded data cable 3 × 1.5 mm² between NH3 sensor and evaluation device (connecting cable required) and NH3 test gas bottle with test gas concentration required for commissioning - 500 ppm = 1st alarm threshold. Test gas concentration - 30000 ppm = 2nd alarm threshold.

Note:
reference is made to the annual check of the setting of the gas warning system.

Service life of the sensors of the sensors approx. 2 years.

Complete with assembly and commissioning

• - 1 × sensor installed in sheet steel housing
• - Gas detector installed in sheet steel housing.

Technical description of electrical control cabinet execution 1.13 ELECTRIC CONTROL CABINET / ACCESSORIES (CODE 13)

Pos. 1 CABINET EMPTY CASE
Control cabinet housing made of steel sheet primed and with a coat of paint RAL 7032.

Number of pieces: 1
With mounting plates, doors with safety locks and lock.

The control cabinet panel is designed as a wall cabinet.

Cable entries are "below", with stuffing boxes.

Labeling of the control cabinet: German
Overall dimensions: 1000 × 1000 × 400.

Pos. 2 CONTROL PANEL VENTILATION

Installation and wiring of a fan and a filter in the side walls of the control cabinet housing. Control of the fan via control cabinet thermostat.
Number of pieces: 1.

Pos. 3 CONTROL CABINET LAMP

Control cabinet interior lighting with fluorescent lamp and on-off switch and socket (16 A).
Degree of protection IP 54.
Number of pieces: 1.

Pos. 4 INPUT 50 KW / 25 A

Infeed via main switch with door lock, installed on the mounting plate and operated from the front of the control cabinet.
Number of pieces: 1.

Pos. 5 OPERATING HOURS COUNTER

Registration of the run times on operating hours counters on the control cabinet.
Number of pieces: 1.

Pos. 6 FANS 400 V / 0.66 KW

Contactor combination for direct switch-on with thermal motor protection and protection with screw-type fuses, with operating messages and fault messages. Selector switch for manual and automatic control.
Number of pieces 6.

Pos. 7 COMPRESSOR CONTROL 30.0 KW

Contactor combination for direct switching on with thermal motor protection and protection with NH power isolator. With operating messages and fault messages. Selector switch manual and automatic control / start rel.
Number of pieces: 1.

Pos. 8 COMPRESSOR SAFETY CHAIN

All safety devices via auxiliary contactors, self-holding in the event of a fault, can be acknowledged using buttons. Signaling of all faults.
Number of pieces: 1.

Pos. 9 WATER PUMPS FOR PANEL CAPACITORS (2-CIRCUIT)

Contactor combination for direct activation with thermal motor protection and protection with screw fuses. With operating messages and fault messages. Selector switch for manual and automatic control.
Number of pieces: 2.

Pos. 10 AMPEREMETER

Ammeter installed in the control cabinet door.
Number of pieces: 1.

Pos. 11 VOLTMETER WITH SWITCH

Voltmeter installed in the control cabinet door with changeover switch.
Quantity 1 .

Pos. 12 LAMP TEST

Lamp test device for all operating and fault messages via buttons.
Number of pieces: 1.

Pos. 13 OPERATING AND DISPLAY UNIT OP 15 / C

Number of pieces: 1.

Pos. 14 LEVEL INDICATOR DIGITAL 0-100%

Number of pieces: 1.

Item 15 POWER SUPPLY 24 V DC LEVEL LEVEL CONTROL

Installed in the control cabinet and completely wired.
Number of pieces: 1.

Pos. 16 GAS WARNING SYSTEM GW 11

Number of pieces: 1.

Item 17 PH VALUE MEASURING DEVICE (2-CIRCUIT)

Number of pieces: 2.

Item 18 EMERGENCY STOP

Installed in the control cabinet and completely wired.
Number of pieces: 1.

Pos. 19 COUPLING LEVEL WITH SIEMENS COUPLING RELAY

Number of pieces: 1.

Pos. 20 PLC CONTROL SIEMENS S5 115U

A freely programmable control with all required inputs and outputs.
Number of pieces: 1.

Item 21 COLLECTIVE FAULT

Collection of all faults in a potential-free contact.
Number of pieces: 1.

Pos. 22 SEQUENCE REVERSE SWITCH

The device is installed in the door and can be operated or viewed from the outside.
Number of pieces: 1.

Item 23 CONTROL TRANSFORMER

Two-phase control transformer with separate windings according to VDE 0550, parts 1 and 3.
Number of pieces: 1.

Pos. 24 CONTROL AND ACCESSORIES

All interlocks and links in the hand and Au automatic operation. Wiring of the individual assemblies among themselves with the necessary auxiliary shooters, Terminal blocks and signaling.

All open terminal points are covered by Astralon.  

Unless stated otherwise above, switchgear is used used by KLöCKNER-MOELLER and the control or the power section is built according to the VDE standard.

The execution of d. Control cabinet takes place after the gül VDE regulation 0100/0113 including the certificate! The control cabinet is checked functionally.

exam

Be on the electrotechnical equipment in compliance with the VDE 0100 guidelines and the UVV-VBG 4 the following tests managed and certified accordingly:

• - functional test
• - Checking the creepage distances and clearances
• - Review of protective measures and art
• - Review of the system u. the wiring
• - Execution and surface protection
• - TESTS ACCORDING TO VDE 0113 PART 1.

The electrical control cabinet is completely installed in the sheet steel housing, and after complete electrical installation of all connections cable between all field devices and the terminal block of the electronic circuit cabinet and put into operation after hanging up the electric cable.

Claims (8)

1. The compact heat pump according to the state of the art in modular design especially for outdoor pools is characterized in that the system is ready to plug in! 2. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that due to the modular design (module 1 and / or module 2) respective performance areas specifically for conventional outdoor pools pool sizes are assigned and covered accordingly can! 3. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that compared to the use of solar technology, the capacity the heat pump is always available! 4. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that heating can take place within one night! 5. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that an environmentally neutral refrigerant - no ozone damage! - and - greenhouse effect equal to 0! - is used! 6. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that a regenerative energy source is used! 7. The compact heat pump according to the state of the art in module design especially for outdoor pools is characterized by that the plug-in air / water heat pump version none compared to conventional water / water heat pump systems large construction measures such. B. H2O pump inlet basin, Nacelle etc. are required, but only an elec trical supply line is necessary! 8. The state-of-the-art compact heat pump in module design especially for outdoor pools is characterized by that the plug-in air / water heat pump version compared to conventional solar systems (heat pump systems) none difficult structural measures required accordingly available solar mats available areas, etc. not become manoeuvrable, just an electrical lead!