Energy-saving device for reducing air inlet temperature of air compression system

Abstract

The utility model provides an energy-saving device for reducing air inlet temperature of an air compression system, which sequentially comprises a static pressure box, a fan coil and an air compressor along the air flow direction, the static pressure box receives external environment air through an air inlet, an air outlet of the static pressure box is connected with an air inlet of the fan coil through an air outlet pipe of the static pressure box, and the air compressor is connected with the fan coil through an air outlet pipe of the air outlet pipe of the static pressure box. An air outlet of the fan coil is externally connected with a coil air outlet pipe, the coil air outlet pipe is provided with a plurality of air supply branch pipes which are distributed in parallel, and the coil air outlet pipe is connected to air inlets of the air compressors through the air supply branch pipes in a one-to-one correspondence mode; chilled water generated by a water chilling unit of a workshop serves as a cold source of the fan coil, an inlet of the coil is connected with a chilled water inlet pipeline to receive the chilled water from the water chilling unit, and an outlet of the coil is connected with a chilled water return pipeline to return the chilled water subjected to heat exchange to the water chilling unit. According to the utility model, the operation energy consumption of the air compression system can be reduced while the operation efficiency of the air compression system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to an energy -conserving device of reducing air pressure system air inlet temperature. BACKGROUND

[0002] The air compressor machine equipment compressor motor power is big, and the heat dissipation is extremely big, leads to air pressure station environment in the transition season, summer temperature is high, the extreme case environment temperature can even reach above 45 DEG C, in addition, due to the environmental temperature change in different seasons, air compressor machine gas production exists fluctuation phenomenon, especially in high temperature environment gas production shows the downward trend, and the air pressure guarantee capacity is adversely affected, and the stable operation of the electric control equipment and electrical equipment in the station has been directly affected.Therefore, the correlation of environmental temperature (exhaust side temperature) and air compressor machine energy efficiency is researched, and then the related equipment facilities are improved, and it has practical significance to guarantee the stable operation of air pressure flow and improve gas production. SUMMARY

[0003] To solve the above technical problems, the utility model provides an energy -conserving device of reducing air pressure system air inlet temperature, to be able to reduce the operation energy consumption of air pressure system while improving the operation efficiency of air pressure system.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] An energy -conserving device of reducing air pressure system air inlet temperature, its structural characteristics are:

[0006] Follow the airflow direction and include static pressure tank, fan coil, air compressor machine in proper order, the static pressure tank receives external environment air through air inlet, and the air outlet of static pressure tank is connected with the air inlet of fan coil through static pressure tank air outlet air pipe, the air outlet of fan coil is connected with coil air outlet air pipe, the coil air outlet air pipe forms multiple parallel distribution air supply branch pipes, and each air supply branch pipe is connected to the air inlet of each air compressor machine one by one respectively;

[0007] The fan coil uses the chilled water generated by the water chiller of workshop as the cold source, and the inlet of the coil is connected with the chilled water inlet pipeline to receive the chilled water from the water chiller, and the outlet of the coil is connected with the chilled water return pipeline to return the chilled water after heat exchange to the water chiller.

[0008] The structural characteristics of the utility model also lie in:

[0009] The fan coil is provided with two groups, and is arranged in parallel, and each group of fan coils is respectively connected with a static pressure tank air outlet air pipe, and the air inlet ends of the two static pressure tank air outlet air pipes are connected and connected with the air outlet of the static pressure tank.

[0010] The fan coil of the fan coil is 4000m 3 / h.

[0011] The fan of the fan coil is an axial fan.

[0012] The fan coil out-air duct is provided with a temperature sensor.

[0013] The chiller unit outputs chilled water to a matched water distributor, and a branch is led out from one water outlet pipeline of the water distributor as the chilled water inlet pipeline.

[0014] The chilled water inlet pipeline is provided with an electric valve.

[0015] The electric valve is a proportional regulating valve.

[0016] The chiller unit collects the chilled water after heat exchange through a matched water collector, and the chilled water return pipeline is connected to one water inlet pipeline of the water collector.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a static pressure tank is configured, and the along -the -way resistance and local resistance of the energy -conserving device main pipeline can be reduced, the chilled water generated by the workshop chiller unit is used as the cooling medium of the fan coil in the device, the stability of the device is improved, and the functions of energy saving and consumption reduction are considered, the air pressure system inlet temperature is reduced, and the utility model discloses a low investment cost to realize the improvement of the air pressure system efficiency. DRAWINGS

[0019] Fig. 1 It is the structural schematic diagram of the utility model discloses a static pressure tank is configured, and the along -the -way resistance and local resistance of the energy -conserving device main pipeline can be reduced, the chilled water generated by the workshop chiller unit is used as the cooling medium of the fan coil in the device, the stability of the device is improved, and the functions of energy saving and consumption reduction are considered, the air pressure system inlet temperature is reduced, and the utility model discloses a low investment cost to realize the improvement of the air pressure system efficiency.

[0020] Fig. 2 It is the flow direction schematic diagram of the chilled water of fan coil.

[0021] In the drawing, 1 static pressure tank;2 static pressure tank out-air duct;3 fan coil;4 fan coil out-air duct;5 air supply branch pipe;6 air compressor;7 chiller unit;8 water distributor;9 chilled water inlet pipeline;10 chilled water return pipeline;11 water collector;12 electric valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantage of the embodiments of the utility model more clear, the technical scheme in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range of protection of the utility model.

[0023] Please refer to Figs. 1-2The energy-saving device for reducing the intake air temperature of the air compressor system in this embodiment includes, in sequence along the airflow direction, a static pressure box 1, a fan coil unit 3, and an air compressor 6. The static pressure box 1 receives ambient air through its air inlet. The air outlet of the static pressure box 1 is connected to the air inlet of the fan coil unit 3 through the static pressure box air outlet duct 2. The air outlet of the fan coil unit 3 is connected to the coil air outlet duct 4. The coil air outlet duct 4 forms multiple parallel air supply branch pipes 5, which are connected to the air inlets of each air compressor 6 one by one.

[0024] The fan coil unit 3 uses the chilled water generated by the chiller unit 7 in the workshop as a cold source. The inlet of the coil is connected to the chilled water inlet pipe 9 to receive the chilled water from the chiller unit 7, and the outlet of the coil is connected to the chilled water return pipe 10 to return the chilled water after heat exchange to the chiller unit 7.

[0025] In practical implementation, the corresponding structural configuration of this energy-saving device also includes:

[0026] The fan coil unit 3 is provided in two sets, which are arranged in parallel. Each set of fan coil units 3 is equipped with a static pressure box outlet air duct 2. The air inlets of the two static pressure box outlet air ducts 2 are combined and connected to the air outlet of the static pressure box 1.

[0027] The fan delivery volume of fan coil unit 3 is 4000m³. 3 / h is for axial flow fans.

[0028] A temperature sensor is installed on the air duct 4 of the coil.

[0029] The chiller unit 7 outputs chilled water to the matching water distributor 8, and a branch line is drawn from one of the outlet pipes of the water distributor 8 as the chilled water inlet pipe 9.

[0030] An electric valve 12 is installed on the chilled water inlet pipe.

[0031] Electric valve 12 is a proportional control valve.

[0032] The chiller unit 7 collects the chilled water after heat exchange through the matching water collector 11, and the chilled water return pipe 10 is connected to one of the water inlet pipes of the water collector 11.

[0033] Both the chilled water inlet pipe 9 and the chilled water return pipe 10 have a diameter of DN50.

[0034] The chilled water flowing into the coil through the chilled water inlet pipe 9 is kept at a temperature of 11℃-15℃. The ambient air from outside exchanges heat fully with the chilled water through the fan coil unit 3, and the cooled fresh air is sent to the air inlet of each air compressor 6.

[0035] In the absence of air conditioning environment for air compression system, the energy-saving device of the embodiment can reduce the air intake temperature of the air compression system, improve the efficiency of the air compression system while reducing the investment cost, and the principle is:

[0036] One branch is led out from one of the water outlet pipelines of the water distributor 8 matched with the self workshop water chiller unit 7, as a chilled water inlet pipeline 9, to lead the chilled water from the water chiller unit 7 into the coil of the fan coil 3, as a cooling medium to exchange heat with the external environment air sent into the fan coil 3 through the static pressure tank 1, to obtain the cooled fresh air, and send the fresh air into the air inlet of the air compressor 6 as the air inlet.

[0037] Based on the embodiment, the skilled person in the art can further expand the function, for example, the energy-saving device can be automatically operated, taking two groups of fan coils 3 as an example, the electric valves 12 and motors in the device are connected to the PLC, and the operation process can refer to:

[0038] The temperature T of the fresh air to be sent to the air compressor 6 in the pipeline is detected by the temperature sensor on the coil air outlet pipeline 4;

[0039] If the temperature T is less than 28℃, the fans of the two groups of fan coils 3 are kept stopped, and the electric valves 12 matched with the chilled water inlet pipeline 9 are kept closed;

[0040] If the temperature 30℃>T≥28℃, one group of fan coils 3 is started, the other group of fan coils 3 is stopped, and the electric valves 12 matched with the chilled water inlet pipeline 9 are opened, so that the cooling of the external environment air sent into the fan coil 3 is completed by one group of fan coils 3, and the cooled air is sent to the air inlet of the air compressor 6;

[0041] If the temperature T is greater than or equal to 30℃, the two groups of fan coils 3 are started, and the electric valves 12 matched with the chilled water inlet pipeline 9 are opened, so that the cooling of the external environment air sent into the fan coil 3 is completed by the two groups of fan coils 3, and the cooled air is sent to the air inlet of the air compressor 6.

[0042] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. An energy-saving device for reducing the intake air temperature of an air compressor system, characterized in that: Following the airflow direction, the system includes a static pressure box, a fan coil unit, and an air compressor. The static pressure box receives ambient air through its air inlet, and its air outlet is connected to the air inlet of the fan coil unit via a static pressure box air outlet duct. The air outlet of the fan coil unit is connected to an external air outlet duct. The air outlet duct forms multiple parallel air supply branches, which are connected one-to-one to the air inlets of each air compressor. The fan coil unit uses chilled water generated by the workshop's chiller unit as its cold source. The inlet of the coil is connected to the chilled water inlet pipe to receive chilled water from the chiller unit, and the outlet of the coil is connected to the chilled water return pipe to return the heat-exchanged chilled water to the chiller unit.

2. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1, characterized in that: The fan coil unit is provided in two sets, which are arranged in parallel. Each set of fan coil units is equipped with a static pressure box outlet duct. The air inlets of the two static pressure box outlet ducts converge and connect to the air outlet of the static pressure box.

3. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1 or 2, characterized in that: The fan coil unit has a fan air delivery capacity of 4000 m³ / h. 3 / h.

4. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 3, characterized in that: The fan in the fan coil unit is an axial flow fan.

5. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1, characterized in that: A temperature sensor is installed on the air outlet duct of the coil.

6. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1, characterized in that: The chiller unit outputs chilled water to the matching water distributor, and a branch line is drawn from one of the outlet pipes of the water distributor as the chilled water inlet pipe.

7. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1 or 6, characterized in that: An electric valve is installed on the chilled water inlet pipe.

8. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 7, characterized in that: The electric valve is a proportional control valve.

9. The energy-saving device for reducing the intake air temperature of an air compressor system according to claim 1, characterized in that: The chiller unit collects the chilled water after heat exchange through a matching water collector, and the chilled water return pipeline is connected to one of the water inlet pipes of the water collector.

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