supermarket refrigerated showcase » article > display freezer > The influence of walk-in cooler refrigeration compressor (4)
The influence of walk-in cooler refrigeration compressor (4)
The influence of walk-in cooler refrigeration compressor (4)
(6) The intermediate pressure should be adapted to the evaporation pressure and the condensation pressure, and it follows the volume of the high and low pressure machines Compared with the change of condensing temperature and evaporating temperature, the maximum shall not exceed 0.4MPa, and note that the current load of the high-voltage motor shall not exceed the rated current of the motor, and the temperature rise of the walk-in cooler motor shall not exceed the specified requirements.
(7) The exhaust temperature of the low-pressure machine and the high-pressure machine should be compatible with the evaporation temperature and condensation temperature (the exhaust temperature of the high-pressure machine does not exceed 120℃), otherwise it means that the operation is not normal enough, and the reasons should be checked and adjusted. When the suction temperature and discharge temperature of the low-pressure machine drop drastically, first turn off the suction valve of the low-pressure machine, and then close the suction valve of the high-pressure machine. Pay close attention to the intermediate pressure not to increase, the compressor oil pressure cannot be reduced, and check at the same time Whether the float valve of the intercooler is out of order and the liquid level is too high, perform draining if necessary. If the wet stroke is severe, it should be stopped urgently, but the low-pressure machine must be stopped first and then the high-pressure machine.
(8) When the compressor in dual operation of the unit is changed to single-stage operation, it must be stopped, and then the piping system valve should be adjusted before starting.
Single-unit two-stage ammonia compressor operation
(1) Pull the flywheel or coupling 2 to 3 turns to check whether the walk-in cooler compressor is normal, then open the discharge valves of the high and low pressure cylinders, and then start the motor.
(2) Slowly open the suction valve of the high-pressure cylinder. If there is a liquid hammering sound, close the suction valve quickly, check the liquid level of the intercooler l, and slowly open the suction valve after it is normal. When the high-pressure cylinder is running, pay attention to the discharge pressure of the high-pressure cylinder not to exceed 1.5MPa.
(3) When the intermediate pressure drops to 0.1MPa, adjust the energy regulating valve to the normal working position step by step, and at the same time, slowly open the suction valve of the low pressure cylinder according to the normal current load of the motor. If there is a liquid hammer sound, you should quickly close the suction valve and check the liquid level of the circulating liquid storage tank or the ammonia separator. After the adjustment is normal, slowly open the suction valve of the low pressure cylinder. Note that the intermediate pressure should not exceed 0.4MPa. The current load must not exceed the rated current of the motor.
The above articles are from refrigerated showcase walk-in cooler and supermarket walk-in cooler. For details, please log in: www.ihdjx.com
free order hotline: +86 18061956n
n +86 18061956n
keywords:
Ranking of similar articles
- refrigerated showcase Refrigeration Equipment Co., Ltd. growth process
- Watermelon fresh-keeping refrigerator can better preserve the nutrients of watermelon
- Refrigerated showcase ltd. refrigeration has been a leader in innovation and energy saving
- The advantage of western restaurant made salad bar - refrigerated showcase
- Refrigerated showcase warm, kick off the new offers
- Don't put the frozen food in shenzhen supermarket display cooler, rapid freezer storage in shenzhen more than two
- Supermarket walk - cooler in fruits and vegetables preservation equipment
- Refrigerated showcase display cooler company 2012 annual celebration
- How to enhance the international competitiveness of the display cases industry
- display cases refrigeration but noisy maintenance (2)
- Commercial refrigeration secondary failure machine noise is large (two)
- Selection of expansion valve in display cases (2)
- Display cooler evaporator embedding and production
- Supermarket commercial refrigeration price range of refrigeration products directly affect the market
- Supermarket refrigerated showcase, supermarket refrigerated showcase, frozen ark excess capacity
- The accelerated development of supermarket refrigerated showcase is conducive to stimulating consumption
- General principles of design and layout of display cooler refrigeration system (3)
- General principles for the design and layout of walk-in cooler refrigeration systems (2)
- The green and energy-saving supermarket supermarket refrigerated showcase has been improving
- display cases The personal hygiene impact of the staff
Latest news articles
- May 2011 refrigerated showcase Qingyuan Tour
- refrigerated showcase Refrigeration Equipment Co., Ltd. growth process
- Refrigerated showcase major sales walk - cooler in class
- Refrigerated showcase display cooler written commercial display cooler legend
- Refrigerated showcase walk - in cooler energy-saving progresses steadily
- 2012 take care of the old man from the supermarket refrigerated showcase
- refrigerated showcase Tip: Which fruits are not suitable for placing in the fruit refrigerated showcase
- Dragon fruit reveals ark makes pitaya ornamental fruit
- Watermelon fresh-keeping refrigerator can better preserve the nutrients of watermelon
- Represent the frozen watermelon fruit for storage
- Hairy crabs freezer frozen taste more fresh
- How hairy crabs fresh refrigerated showcase display cooler tell you
- Large supermarket display ark how to choose the right goods
- Small convenience store owner should show how to choose the convenience stores ltd. refrigeration
- Refrigerated showcase ltd. refrigeration has been a leader in innovation and energy saving
- In September 2012, refrigerated showcase west chung
- Refrigerated showcase walk - in cooler cleaner which aspects should be paid attention to
- Correctly use refrigerated showcase supermarket refrigerated showcase the matters needing attention
- , a refrigerated display showcase meat cooler features of the product
- Refrigerated showcase walk - in the cooler is icy