WO2018000452A1

WO2018000452A1 - Refrigeration system for providing refrigeration to construction site

Info

Publication number: WO2018000452A1
Application number: PCT/CN2016/089761
Authority: WO
Inventors: 林汝捷; 魏德强
Original assignee: 福建雪人股份有限公司
Priority date: 2016-06-28
Filing date: 2016-07-12
Publication date: 2018-01-04
Also published as: CN106196701B; CN106196701A

Abstract

Provided is a refrigeration system for providing refrigeration to a construction site. The refrigeration system comprises a remote control system and a movable refrigeration station. The movable refrigeration station comprises a controller (8), an ammonia refrigeration unit and a container (10). The controller (8) and the ammonia refrigeration unit are arranged in the container (10). The controller (8) is electrically connected with the ammonia refrigeration unit and used for obtaining parameters of one or more component parts of the ammonia refrigeration unit. The remote control system includes a control terminal and a server. The control terminal is connected with the controller (8) by means of the server, and the server is connected with the control terminal so as to achieve remote monitoring of the movable refrigeration station. When one of the systems breaks down, the other systems may still operate normally, so as to avoid the overall operational risks for construction sites or projects caused by system faults.

Description

Refrigeration system for cooling the construction site

Technical field

[0001] The present invention relates to a refrigeration system, and more particularly to a refrigeration system for supplying cooling to a worksite.

Background technique

[0002] At present, most of the refrigeration systems for ammonia use the traditional civil engineering machine room design. The traditional civil engineering machine room needs steel reinforced concrete construction, which has a large area, and the construction on site is difficult and the completion period is long. The general ammonia refrigeration unit is limited by the size of the on-site equipment room and the construction site. The on-site installation is cumbersome and greatly increases the workload. The traditional civil engineering machine room is limited by the geographical construction site, which may cause the distance between the computer room and the warehouse to be far away. Therefore, the refrigerant capacity needs to be filled with a large amount of refrigerant; and because of the large construction site, the refrigeration system The pipeline is long, the system is assembled on site, and there are many hidden dangers; when the project is over, the civil engineering room can no longer function. Even if the civil engineering room is transformed into a mobile refrigeration station, its electrical control system can only be controlled by the electric control box of the refrigeration station. When the staff is not on site, remote control cannot be realized. Moreover, the mobile refrigeration station at the construction site can only be controlled separately, and centralized management cannot be performed.

technical problem

The technical problem to be solved by the present invention is to provide a refrigeration system for remotely controlling a construction site mobile refrigeration station and centrally managing a plurality of mobile refrigeration stations for cooling the worksite.

Problem solution

Technical solution

[0004] In order to solve the above technical problem, the technical solution adopted by the present invention is: a refrigeration system for supplying cooling to a construction site, including a remote control system and a plurality of mobile refrigeration stations, and a plurality of mobile refrigeration stations are respectively disposed at the construction site. The mobile refrigeration station includes a controller, an ammonia refrigeration unit and a container, the controller and the ammonia refrigeration unit are disposed in the container, and the controller is electrically connected to the ammonia refrigeration unit; The control system includes a control terminal, and the controllers of the plurality of mobile refrigeration stations are respectively connected to the control terminal.

Advantageous effects of the invention Beneficial effect

[0005] The beneficial effects of the present invention are: setting a controller on a mobile refrigeration station, the controller is connected to the server through a network, and the server is connected to the control terminal, thereby realizing remote monitoring of the mobile refrigeration station; using an electromechanical integration structure, The electrical control system and the electric control box of the original civil machine room are integrated to improve the installation of the controller on the mobile refrigeration station, so that the compact structure of the unit also reduces the auxiliary electric quantity and reduces the electric power consumption during the operation of the unit, and improves the mobile type. Refrigeration efficiency of the refrigeration station; According to the engineering needs of the construction site, multiple mobile refrigeration unit modules can be combined and distributed to various requirements of the construction site or project. After a single system fails, other systems can still operate normally, avoiding the system. The overall operational risk of the site or project caused by the failure.

Brief description of the drawing

DRAWINGS

1 is a schematic structural view of a refrigeration system for cooling a worksite according to an embodiment of the present invention.

2 is a schematic structural view of a mobile refrigeration station for a refrigeration system for cooling a worksite according to an embodiment of the present invention;

3 is a schematic view showing the piping connection of a mobile refrigeration station of a refrigeration system for cooling a worksite according to an embodiment of the present invention.

[0009] Description of the label:

[0010] 1-compressor; 2-oil separator; 3-oil cooler; 4-horizontal water pump; 5-three-integrator; 6-reservoir; 7-plate and shell condenser; 8-control 9-closed water cooler; 10-container; 11-container interior area; 12-container exterior area; 13-plate heat exchanger; 14-suction filter; 15-supply port; 16-return port 17-Add ammonia.

detailed description

[0011] Referring to FIG. 1 and FIG. 2, a refrigeration system for cooling a work site includes a remote control system and a plurality of mobile refrigeration stations, and a plurality of mobile refrigeration stations are respectively disposed at different construction sites of the work site, The mobile refrigeration station includes a controller, an ammonia refrigeration unit and a container, the controller, the ammonia refrigeration unit is disposed in the container, the controller is electrically connected to the ammonia refrigeration unit; and the remote control system includes a control terminal. The controllers of the plurality of mobile refrigeration stations are respectively connected to the control terminal. [0012] The working principle of the invention is as follows:

[0013] After power-on, the mobile refrigeration station is automatically networked via the controller (GPRS, WIFI, GPS or other forms)

), sending signals to the outside;

[0014] The server or the cloud platform will retrieve the transmission signals (positioning signals or current, voltage, construction site ambient temperature, etc.) of each mobile refrigeration station, and complete the connection, send instructions, and perform remote monitoring;

[0015] The user's control terminal (mobile phone, tablet, PC or other terminal) is connected to the server or cloud platform

, can view the running status of the field device, and can query the operation record and generate a report;

[0016] The equipment in the field has an abnormal situation, and the server or the cloud platform sends information to the control terminal to remind the user.

[0017] wherein, the controller combines various signals into a combined signal representing a construction point (controller including a G PS system) and performance at a certain point, and can analyze the performance of the mobile refrigeration station by using the combined signal To perform at least one of the following:

[0018] assigning responsibility when a component or system failure occurs;

[0019] and predicting whether the mobile refrigeration system is about to fail.

[0020] After the above occurs, the controller provides a warning or schedules a repair based on the predicted fault.

[0021] It can be seen from the above description that the beneficial effects of the present invention are: providing a controller on the mobile refrigeration station, the controller is connected to the server through the network, and the server is connected to the control terminal, thereby realizing remote monitoring of the mobile refrigeration station;

[0022] According to the engineering needs of the construction site, multiple mobile refrigeration station module combinations can be adopted, which are distributed to various requirements of the construction site or the project. When a single system fails, other systems can still operate normally, avoiding the system failure. The overall operational risk of the construction site or project;

[0023] The electromechanical integration structure is used to integrate the electrical control system and the electric control box of the original civil machine room to improve the setting of the controller on the mobile refrigeration station, so that the compact structure of the unit also reduces the number of auxiliary electric devices.电气Electrical power consumption during the operation of the unit, improving the cooling efficiency of the mobile refrigeration station.

[0024] The original civil engineering machine room is set up at the construction site, and a plurality of container-type mobile refrigeration stations are set up to remotely monitor the operating state of the container mobile refrigeration station, thereby effectively managing and following the operating state of the system. The remote control system manages the operation status of each containerized mobile refrigeration station and regulates it. It also facilitates user operations and manufacturers to track system status and receive customer feedback. [0025] Further, the ammonia refrigeration unit includes a signal input and output circuit and a compressor, an oil separator, an oil cooler, a horizontal water pump, a three-in-one device, a liquid reservoir, and a signal input/output circuit, respectively. a plate and shell condenser and a closed water cooler, the compressor, the oil separator, the oil cooler, the horizontal water pump, the three-in-one device, the liquid reservoir, the plate and shell condenser, and the signal input and output circuit are installed at In the container, the closed water cooler is installed at the top of the container, and the signal input and output circuit is connected to the controller.

[0026] It can be seen from the above description that the mobile refrigeration station adopts a container-type compact design, and the space of the equipment room is small. If the conventional design is adopted, the heat dissipation capability of the unit is affected by the space, and the operating temperature of the unit rises greatly, and the unit cannot be stably operated. The problem is that the refrigerant directly cools the lubricating oil system and the compressor unit directly, and heats the refrigerant through the water system, takes away the running heat generated by the unit, realizes the overall operating temperature rise of the unit, and realizes the overall cooling of the unit. The effect is to ensure the stable operation of the unit;

[0027] The mobile refrigeration station adopts a container-type compact design, adopts a water cooling system, and the unit operation noise is small, thereby realizing the noise reduction effect of the unit;

[0028] The controller is connected to the ammonia refrigeration unit through the signal input and output circuit, so that the controller can directly control the operation of each component of the ammonia refrigeration unit.

[0029] Further, the controller is a PLC controller.

[0030] Further, the remote control system further includes a server, and the control terminal is connected to the controller through a server.

[0031] Further, the remote control system further includes a cable, and the control terminal is connected to the controller through a cable.

[0032] Further, the mobile refrigeration station further includes a temperature sensor and a humidity sensor, wherein the temperature sensor and the humidity sensor are both distributed at a construction site, and the temperature sensor and the humidity sensor are electrically connected to the controller.

[0033] As can be seen from the above description, the construction site environment is remotely monitored by providing a temperature sensor and a humidity sensor at the construction site.

[0034] Further, the compressor is installed in a container through a steel frame, and a shock absorbing block is disposed between the compressor and the steel frame, which can reduce vibration generated by the operation of the compressor; meanwhile, the bottom of the container is provided Anti-corrosion wood board can reduce the vibration generated by the operation of ammonia refrigeration unit. [0035] It can be seen from the above description that the mobile refrigeration station adopts the container as the carrier, and the overall vibration requirement of the refrigeration unit is increased, and the conventional refrigeration unit cannot meet the corresponding requirements. The product is designed for the unit and is equipped with shock absorption. The steel frame structure of the block enhances the shock absorption effect of the unit and realizes the smooth operation of the mobile refrigeration unit.

Referring to FIG. 1 to FIG. 3, an embodiment of the present invention is:

[0037] a refrigeration system for supplying cooling to a worksite, comprising a remote control system and a plurality of mobile refrigeration stations, wherein the plurality of mobile refrigeration stations are respectively disposed at different construction sites of the worksite, the mobile refrigeration station including a controller, The refrigeration unit and the container for ammonia, the controller and the ammonia refrigeration unit are disposed in the container, the controller is electrically connected to the ammonia refrigeration unit; the remote control system includes a control terminal, and the plurality of mobile refrigeration stations The controllers are respectively connected to the control terminals. The ammonia refrigeration unit includes a signal input and output circuit and a compressor 1, an oil separator 2, an oil cooler 3, a horizontal water pump 4, a three-in-one device 5, a liquid reservoir 6, respectively connected to the signal input and output circuit. a plate and shell condenser 7 and a closed water cooler 9, the compressor, the oil separator, the oil cooler, the horizontal water pump, the three-in-one device, the liquid reservoir, the plate and shell condenser, and the signal input and output circuit Installed in the container 10, the closed water cooler is mounted on the top of the container, and the signal input and output circuit is connected to the controller 8. The controller is a PLC controller. The mobile refrigeration station is provided with a plurality of, and the plurality of mobile refrigeration stations are all wirelessly connected to the server. The mobile refrigeration station further includes a temperature sensor and a humidity sensor, both of which are distributed at the construction site, and the temperature sensor and the humidity sensor are electrically connected to the controller. The mobile refrigeration station is used to supply cooling to the construction site. The control terminal is a PC, a mobile phone or a tablet.

[0038] The pipeline connection of the mobile refrigeration station is as shown in FIG. 3, wherein the dotted line frame 11 indicates the inner area of the container, the broken line frame 12 indicates the outer area of the container, the component of the numeral 13 is a plate heat exchanger, and the component of the numeral 14 is The suction filter, the construction point of the reference numeral 15 is the liquid supply port, the construction point of the numeral 16 is the air return port, and the construction point of the numeral 17 is the ammonia addition port.

[0039] In summary, the mobile refrigeration system provided by the present invention has the following advantages: a controller is disposed on the mobile refrigeration station, the controller is connected to the server through a network, and the server is connected to the control terminal, thereby implementing mobile cooling. Remote monitoring of the station; The mechatronics structure is used to integrate the electrical control system and the electrical control box of the original civil machine room to improve the installation of the controller on the mobile refrigeration station, so that the compact structure of the unit also reduces the number of auxiliary electrics. Reduce the electrical power consumption during the operation of the unit, and improve the mobile cooling



Claims

Claim

A refrigeration system for supplying cooling to a construction site, comprising: a remote control system and a plurality of mobile refrigeration stations, wherein the plurality of mobile refrigeration stations are respectively disposed at different construction points of the worksite, and the mobile refrigeration station includes a controller The ammonia refrigeration unit and the container, the controller and the ammonia refrigeration unit are disposed in the container, the controller is electrically connected to the ammonia refrigeration unit; the remote control system includes a control terminal, and the plurality of mobile refrigeration The controllers of the stations are respectively connected to the control terminals.

A refrigeration system for cooling a worksite according to claim 1, wherein: said refrigeration unit for ammonia comprises a signal input/output circuit and a compressor, an oil separator, and oil cooling respectively connected to the signal input/output circuit. , horizontal water pump, three-in-one device, liquid receiver, plate and shell condenser and closed water cooler, the compressor, oil separator, oil cooler, horizontal water pump, three-in-one device, storage The liquid level, the plate and shell condenser and the signal input and output circuit are installed in the container, the closed water cooler is installed at the top of the container, and the signal input and output circuit is connected to the controller.

A refrigeration system for cooling a worksite according to claim 1, wherein: said remote control system further comprises a server, said control terminal being connected to the controller through the server

[Claim 4] The refrigeration system for cooling a worksite according to claim 1, wherein: the remote control system further includes a cable, and the control terminal is connected to the controller through a cable.

[Claim 5] The refrigeration system for cooling a worksite according to claim 1, wherein: the controller is a PLC controller.

[Claim 6] The refrigeration system for cooling a worksite according to claim 1, wherein: the mobile refrigeration station further comprises a temperature sensor and a humidity sensor, wherein the temperature sensor and the humidity sensor are both distributed At different construction points of the construction site, the temperature sensor and the humidity sensor are electrically connected to the controller.

[Claim 7] The refrigeration system for cooling a worksite according to claim 1, wherein: the bottom of the container is provided with a corrosion-resistant wooden board.