Why Choose Us
Endurance Energy Equipment Co., Ltd is a member of Endurance Industry Corporation, a leading supplier of technology and services in multiple industries including oil & gas equipment, environmental equipment, special equipment, and automobile parts. The company has a history that can be traced back to 1905, when it was established as China's first measurement factory. We specialize in producing Mobile CNG Station, CNG Storage Cascade, Pressure Reduction Station, Integrated CNG Station, Integrated CNG Daughter Station, CNG Booster Compressor For Daughter Station, and other CNG Daughter Station.
Tailoring Process Flows
Meticulous planning is the key to success. Our engineering experts are world leaders in the development of bespoke plants and process technologies. We team up with our customers, working closely with them to engineer the optimum process -no matter how complex -based on state-of-the-art proprietary and proven licensed technologies.
Construction And Commissioning
Constructing an industrial plant is a mammoth, multi-step undertaking spanning the entire technology, engineering, procurement and construction value chain. Through our assembly monitoring centers, assembly partners and global network of fabrication yards, we ensure that all resources and experts are in the right place, at the right time. We are also the partner of choice when it comes to the final, all-important step in the process -commissioning. Our commissioning engineers make sure that your multi-million plant is fully ready for operations before they efficiently and smoothly hand it over to you.
Global Procurement Network For Cost And Reliability Gains
Our logistics teams transport modules weighing several thousand metric tons to the most remote corners of the globe. But we also ship smaller, single components, always choosing the fastest route to get urgent deliveries on site, on time. No matter what you need, we make the impossible possible -with the backing of our dedicated supplier approval concept coupled with a reliable, scalable and transparent request and order process. This enables us to offer you outstanding quality, on-time deliveries and a host of value-add services at great prices.
Rich Experience
The market share of our CNG dispensers and LNG dispensers has stayed on top in China since 2003 with over 24,000 sets metering units selling record, and has been installed globally including the Middle East, Pakistan, Bangladesh, Thailand, Indonesia, Nigeria, France, Uzbekistan, Turkey, Russia etc.
Pressure Reduction Station is used for separating of particles, pressure regulating and metering of feed gas received in the station.
CNG Storage Cascade Stores CNG at different pressures in groups. After high pressure vaporization, water bath vaporizer, CNG into the priority panel, through automatic distribution, stored in three groups of high, medium and low pressure CNG cylinders.
CNG Daughter Station is installed where a CNG fill station is desired but there is no natural gas pipeline. Natural gas is brought to the CNG station by mobile storage. A daughter station compressor quickly and efficiently moves the natural gas from the mobile storage to ground storage.
Endurance Energy Equipment Co., Ltd is a member of Endurance Industry Corporation, a leading supplier of technology and services in multiple industries including oil & gas equipment, environmental equipment, special equipment, and automobile parts.
M-type CNG compressor adopts four rows of symmetrical balance structure, four rows of crank 90° each other, reciprocating inertia force fully balanced, stable operation of the unit, small vibration. The machine has compact structure and easy maintenance. Especially suitable for the integration of large capacity compressors in large CNG mother station, which requires five stages of compression.
CNG In a Box system is an innovative solution to build CNG station for you in the shortest period than ever before. Everything in traditional station are prefabricated in a standard ISO container, tested in the factory, delivered to your site and ready to use immediately by simply plug-and-play.
Hydraulic piston compressors are built in areas where there are no natural gas pipelines. CNG mother station pressurized natural gas storage through the compressor, and then CNG trailer will transport 25Mpa compressed natural gas to the sub station for CNG car refueling.
It is a highly integrated CNG filling station. The dipenser, compressor, gas storage cylinder and explosion-proof control cabinet are integrated in one container. The refueling station can be used directly without additional installation.
LCNG pump skid is a device that converts LNG (liquefied natural gas) into CNG (compressed natural gas) after pressurizing the LNG in the low-temperature storage tank in the filling station (the temperature of LNG in the storage tank is generally between -162°C and -125°C, and the pressure is between 0.1 and 1.2MPa) to the maximum pressure of 25MPa.
What is CNG Daughter Station
CNG daughter station means CNG facilities not connected to natural gas pipeline and such CNG dispensing stations where mobile or stationary cascades are connected to the booster compressor for increase in discharge pressure for refueling of the vehicles. If you want to know the specifications and prices of CNG Daughter Station, please contact us!
What is the Relationship Between Daughter Station and Mother Station?
Daughter booster station
CNG is dispensed to vehicles based on the principle of pressure equilibrium. Once the pressure of a mobile cascade drops below 200 bars at daughter stations, vehicles get less amount of gas, which is below 200 bars. With each fill thereafter, the amount of gas dispensed to vehicles starts decreasing and the filling time starts increasing, thereby leaving the customer dissatisfied.
Daughter booster stations address the issue. These are similar to daughter stations. However, in order to cater to customers with regard to the amount of gas dispensed as well as filling time, a booster compressor (hydraulic type with variable suction pressure) is installed in between the mobile storage and the CNG dispenser. The booster compressor increases the pressure above 200 bars once the pressure of the mobile cascade falls below 200 bars. Thus, the maximum amount of gas stored in the mobile cascade is dispensed to the daughter booster station.
Mother-daughter refuelling system
Mother Station Mother-daughter CNG Fueling Stations are generally standard CNG stations which dispense a large volume of compressed natural gas into mobile CNG trailers, which transport the gas to sites that do not have access to a natural gas pipeline.
A mother-daughter refuelling system helps supply natural gas to remote stations that are not connected to the local gas grid without having to incur the expense and effort of installing the necessary infrastructure. The mother-daughter refuelling system represents a virtual pipeline.
The mother station is connected to the gas grid. It supplies CNG to the mobile storage system via integrated refuelling equipment. The mobile storage system is transported to the remote offline (daughter) station.
Thereafter, the storage system is emptied to supply natural gas to the daughter station. Both the mother station and the daughter station are equipped with fill posts so that vehicles can be refuelled. All the series in the mother-daughter refuelling system are modular by design. They can be expanded relatively easily and at reasonable cost and have been designed for high capacity performance at various pressure stages.
The advantages of the mother-daughter refuelling system are as follows:
●Provides temporary supply of natural gas to pipelines undergoing scheduled or unscheduled maintenance.
●Service customers not connected to the existing distribution systems.
●ffers emergency distribution service in case there is a line break.
Challenges for Operation of Daughter Stations
Dependability on availability of CNG transport vehicle (CTV).
Various factors are affecting the availability of CTV such as traffic conditions, road closures/ diversions, vehicle breakdown etc..
The compressed gas needs to be re-compressed at DB Stations which involves additional cost.
Transportation cost, which includes the cost of vehicle, fuel, driver's & helper's wages has significant impact on expenses.
As the DB Stations are located in remote locations also, there is frequent events of power cut, voltage fluctuations which affects the availability of gas at CNG Stations. Engine Driven Booster Compressor packages are not yet available in the market.
Increase of machine downtime due to remote location of DB Station.
Due to space constraint at DB Station the safety and precautionary measures to be followed while movement of CTV at DB Station.
Mother-daughter refuelling system is the ideal concept for transporting and distributing natural gas in regions without an existing natural gas pipeline system
Mother stations are used to dispense large volumes of gas into mobile storage trailers which transport the gas to sites that do not have access to a natural gas pipeline.
Mother stations are used to fill large volumes of CNG into mobile storage trailers. A mother station will always be located near a natural gas pipeline. Mobile storage allows transportation of natural gas to a site that does not have access to a natural gas pipeline. Typical applications where mother stations are used are to supply gas to: daughter CNG stations, industries and city gas distribution systems.
Mother-daughter refuelling systems can be designed with tree or more mobile storage systems depending on requirements, thus safeguarding 100% availability of natural gas at the offline or daughter station.
Daughter stations are used where a CNG fuelling station is needed and there is no natural gas pipeline.
Pressure Reduction Systems are used to adjust the pressure for offloading to Daughter stations or other gas distribution systems.
Daughter Stations are installed where a CNG fill station is desired but there is no natural gas pipeline. Natural gas is brought to the CNG station by mobile storage. A daughter station compressor quickly and efficiently moves the natural gas from the mobile storage to a ground storage. The daughter station compressor can also be used to directly fill vehicles.
Station equipment is sourced and configured for specific fuelling situations
Standard stations for NGV fueling with CNG will generally include an inlet dryer to remove moisture, compressor sheds consisting of a motor, compressor and cooling unit, a priority panel that manages the gas flow into storage vessels and controls panels.
Building a CNG station for a retail application or a fleet requires calculating the right combination of pressure and storage needed for the types of vehicles being fueled. Making the right choices about the size of compressor and the amount of storage at the station will impact the cost of fuel and range for vehicles.
There are two types of CNG infrastructure: time-fill and fast-fill. The main structural differences between the two systems are the amount of storage capacity available and the size of the compressor. These factors determine the amount of fuel dispensed and time it takes for CNG to be delivered.
There are many safety guidelines that need to be considered when developing infrastructure, including the National Fire Prevention Association's NFPA 52 Vehicular Gaseous Fuel Systems Code, which applies to the design and installation requirements of CNG refueling facilities.
Costs of installing natural gas infrastructure varies based on size, capacity, and the type of natural gas (LNG, CNG, or both) it dispenses. It also varies in the way the natural gas is dispensed (fast-fill, time-fill).
Best Practices for Making Your Daughter Booster Stations Business Profitable
There is nothing more upsetting to a customer than to show up at a Daughter Booster Stations during operating hours to find it is closed. Make sure you hire prompt and timely employees for all shifts but in particular the opening shift.
The company is a 'Member of China Interior Decoration Association', 'National Excellent Enterprise in Air Interior Decoration', and was rated as 'Top Ten Brands of Electric Curtains', with 7 product patents, and it is well-known in the industry.
If your gas station has a convenience store, then maintaining your inventory and restocking is a must. A customer wants to be able to stop and get what they need on top of putting gas in their car. For your late-night customers, it is even more important to have the shelves stocked. Your convenience store may be the only place open. A customer will remember how easy it was to get what they needed at your Daughter Booster Stations.
Inventory your station's tank amounts as well. There could be nothing worse than not having enough gasoline in your tanks.
Of course, security is always a need for yourself, the employees, and the business. However, a lack of security can create a bad public relations situation for your business. Bad security and PR will definitely mean a loss of business. Above all, this will make your gas station a sought-after location.
Proper Forecourt Maintenance Is Daughter Booster Stations Success
Proper forecourt maintenance also involves committing to an inspection and maintenance regimen for all equipment (and hardware) installed at your forecourt.
Inspecting and maintaining your fuel nozzles.
Inspecting and maintaining your dispenser hose.
Inspecting and maintaining your storage tank.
You should check them daily for loose spouts, leaks, broken clips, and bent levers.
Longer range inspections cover:
●Monthly Checking the automatic shut-off feature.
●Checking the "remove-by" date.
●Checking for electrical continuity
If there any damaged (or past it) fuel nozzles, they should be replaced immediately.
●Issues in the dispenser hose are common and often the most cited violations during safety inspections.
●You should inspect your fuel pump dispensing hose and whip hose assembly weekly for kinks, leaks, bulges, blisters, cuts, flattened areas, and soft spots.
If there are any signs of abuse or stress, replace the assembly with a new one.
Storage tank inspection and maintenance involve a long list of practices and protocols. A few of the recommended checks include:
●Inspecting the spill bucket before and after every delivery for damages, cap tightness, water, debris, and fuel waste
●Inspecting the manholes to ensure they are properly bolted
●Inspecting the tank for phase separation detection
Fuel retailing is a highly competitive business. To survive and prosper in this business, you must keep your fuel retailing site well maintained, especially the forecourt. It's just a smart way of operating.
Certifications
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Frequently Asked Questions
|
Sr. no |
PARAMETER |
SPECIFICATION |
|
1 |
Compressor type |
Hydraulic booster |
|
2 |
Manufacturer |
Endurance |
|
3 |
Model No. |
YZ2 |
|
4 |
No. of compression stages |
2 stages |
|
5 |
Cylinder arrangement |
Vertical |
|
6 |
No. of cylinders |
2 |
|
7 |
Type of gas cooling |
Air cooling or Air-water cooling |
|
8 |
Drive Type |
Direct coupled Electric motor driven |
|
9 |
Main motor power |
22, 37, 45, 55, 75, 90 KW |
|
10 |
Gas Inlet pressure (Kg/cm2) |
200~30 kg/cm2 |
|
11 |
Max. Discharge pressure |
250 kg/cm2 |
|
12 |
Ambient Temperature |
-10~45 deg. C |
|
13 |
Discharge temperature after cooler |
Not exceeding 55℃ calculated at 40℃ ambient temperature |
|
14 |
Average capacity in Nm3/hr (suction pressure 200~30 kg/cm2) |
800 based on the gas density of 1kg=1.43Sm3 |
|
15 |
PLC System |
Siemens S7-1215C |
|
16 |
Noise level at 1 meter from enclosure |
75±3 dB(A) |
|
17 |
Flameproof Grade |
Ex II 2G II AT4 Gb |
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