Maintenance alarm system for centralized cooling station

Abstract

The utility model discloses a maintenance alarm system for a centralized cooling station. The maintenance alarm system comprises an acquisition terminal installed at the periphery of the centralized cooling station, a processing module interacting with the acquisition terminal, and a detection module interacting with the processing module. The acquisition terminal is used for acquiring performance parameters of an electric refrigerating unit of the centralized cold supply station; the processing module is used for receiving the performance parameters acquired by the acquisition terminal, processing the performance parameters and then sending a maintenance alarm signal; according to the utility model, when the temperature difference of chilled water and the temperature difference of cooling water are respectively within the corresponding preset value ranges, a maintenance alarm signal can be sent, the maintenance alarm signal can remind a worker to carry out descaling and impurity cleaning on pipelines of a condenser and an evaporator, and the descaling mechanism in the utility model is utilized during descaling, so that the optimal descaling effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the centralized cold supply station peripheral field especially relates to a kind of maintenance alarm system for centralized cold supply station. BACKGROUND

[0002] The refrigeration station of centralized cold supply is in the electricity trough period of night, and is stored in ice storage in refrigeration station ice making, until daytime, melt into 6 degree or so cold ice water, through pipeline delivery to user room.These cold ice water will not directly enter room, there is fan in each terminal port.Cold ice water will be the air around fan cooling into cold wind, then by fan cold air is delivered to each room, achieve the purpose of reducing temperature.Compared with traditional central air conditioning, 12% energy consumption is reduced after centralized cold supply.Taking Shanghai as an example, 130 million degrees of electricity can be saved each year, equivalent to reducing 16,000 tons of standard coal and 13 million tons of carbon dioxide emissions.

[0003] The reasons that chilled water supply and return water temperature difference and cooling water supply and return water temperature difference are small can include improper design and operation parameter selection of refrigeration unit, unreasonable pipeline design and water flow layout, water quality problem and operation state and maintenance of refrigeration unit are not in place, etc.In operation, condenser and evaporator need to be checked and cleaned regularly to ensure the cleanliness and purity of water quality.In these reasons, scale problem appears frequently after installation and debugging, and the descaling maintenance work of each pipeline is artificially checked, and then judged according to experience, which leads to the need for continuous checking, and automatic checking cannot be realized, scale is serious, dirt cannot be cleaned in time, and maintenance difficulty is greatly increased. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of maintenance alarm system for centralized cold supply station to solve the problem that scale is serious and dirt cannot be cleaned in time in the maintenance process of prior art by artificial inspection and experience judgment.

[0005] The utility model adopts the following technical scheme: a kind of maintenance alarm system for centralized cold supply station, comprising: collection terminal installed in the periphery of centralized cold supply station, processing module interacted with collection terminal and detection module interacted with processing module;Collection terminal is used to collect the performance parameter of electric refrigeration unit of centralized cold supply station;Processing module is used to receive the performance parameter collected by collection terminal, and sends maintenance alarm signal after processing;

[0006] Collection terminal includes: first temperature sensor, second temperature sensor, third temperature sensor and fourth temperature sensor, respectively installed in the chilled water outlet pipe, chilled water return pipe, cooling water outlet pipe and cooling water return pipe of electric refrigeration unit, respectively used to measure the temperature of chilled water outlet, the temperature of chilled water return, the temperature of cooling water outlet and the temperature of cooling water return;

[0007] The processing module is configured to receive the temperature of the chilled water outlet, the temperature of the chilled water return, the temperature of the cooling water outlet, and the temperature of the cooling water return, and calculate the chilled water temperature difference between the temperature of the chilled water outlet and the temperature of the chilled water return, and the cooling water temperature difference between the temperature of the cooling water outlet and the temperature of the cooling water return, and send a maintenance alarm signal when the chilled water temperature difference and the cooling water temperature difference are within the corresponding preset value range, wherein the maintenance alarm signal is used to remind workers to clean the pipes of the condenser and the evaporator.

[0008] The cleaning mechanism is further configured to clean the dirt and debris in the pipes of the condenser and the evaporator by rotating manually.

[0009] Further, the cleaning mechanism comprises:

[0010] The water inlet hose has an outer end connected to an external water source through a water pump.

[0011] The water spraying pipe has an outer end connected to the inner end of the water inlet hose, and an inner end with an expanded interface for receiving high-pressure water from the water inlet hose.

[0012] The water inlet branch pipe has an inner end closed and an outer end sleeved on the outer periphery of the inner end of the water spraying pipe and connected to the expanded interface of the water spraying pipe.

[0013] The capillary tube spray pipe is arranged around the outer wall of the water inlet branch pipe and has a proximal end connected to the water inlet branch pipe and a distal end close to the inner wall of the pipes of the condenser and the evaporator for flushing the dirt and debris on the inner wall of the pipes of the condenser and the evaporator.

[0014] The brush assembly is arranged along the water inlet branch pipe and hung on both ends of the water inlet branch pipe for deep cleaning of stubborn dirt in the pipes of the condenser and the evaporator.

[0015] Further, the brush assembly is detachable and easy to replace, and the brush assembly comprises:

[0016] A plurality of strip-shaped arc-shaped plates are arranged around the water inlet branch pipe and extend towards the inner wall of the water inlet branch pipe at one end close to the outer end of the water inlet branch pipe and are hung on the outer end of the water inlet branch pipe, and the other end of each arc-shaped plate is clamped on the outer wall close to the water inlet branch pipe.

[0017] A plurality of brushes are fixed on the strip-shaped plates and arranged in an array, and the plurality of brushes are used to clean deep dirt on the pipes of the condenser and the evaporator when the cleaning mechanism is rotated or moved along the pipes of the condenser and the evaporator.

[0018] Further, the acquisition terminal further comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, which are respectively installed on the chilled water outlet pipeline, the chilled water return pipeline, the cooling water outlet pipeline and the cooling water return pipeline of the electric refrigerating unit, and are respectively used for measuring the pressure of the chilled water outlet pipeline, the pressure of the chilled water return pipeline, the pressure of the cooling water outlet pipeline and the pressure of the cooling water return pipeline.

[0019] The processing module is further used for calculating a chilled water pressure difference between the chilled water outlet pipeline and the chilled water return pipeline, and a cooling water pressure difference between the cooling water outlet pipeline and the cooling water return pipeline, and sending a maintenance alarm signal when the chilled water pressure difference and the cooling water pressure difference are within a preset pressure range.

[0020] The utility model has the advantages of:

[0021] The utility model discloses can calculate the chilled water temperature difference of the temperature of chilled water export and the temperature of chilled water return, and the cooling water temperature difference of the temperature of cooling water export and the temperature of cooling water return, when the chilled water temperature difference and the cooling water temperature difference are respectively located in corresponding preset value range, send maintenance alarm signal, and the maintenance alarm signal can remind the worker to carry out descaling and sundry cleaning to the pipeline of condenser and evaporator, utilizes the descaling mechanism in the utility model when descaling, and the descaling mechanism is inserted into the pipeline of condenser and evaporator, utilizes high pressure water to clean the sundry in the pipeline of condenser and evaporator, and makes the brush of descaling mechanism constantly flush the inner wall of the pipeline of condenser and evaporator constantly, reaches the best descaling effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structural schematic diagram of the descaling mechanism of the utility model;

[0023] Figure 2 It is the local schematic view of the descaling mechanism of the utility model.

[0024] Wherein: 10, water inlet hose;11, water jet pipe;12, water inlet branch pipe;13, capillary tube spray pipe;14, arc plate;15, brush. DETAILED DESCRIPTION

[0025] The utility model will be explained in detail in connection with the drawings and specific embodiment.

[0026] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more. The "trend" in the utility model is described according to the trend of the utility model in the state. Figure 1

[0027] The utility model discloses a kind of maintenance alarm systems for central cooling station, including the collection terminal installed in the periphery of central cooling station, the processing module that interacts with collection terminal, and the detection module that interacts with processing module;Collection terminal is used to collect the performance parameter of the electric refrigeration unit of central cooling station;Processing module is used to receive the performance parameter collected by collection terminal, and sends maintenance alarm signal after processing.

[0028] Collection terminal includes: first temperature sensor, second temperature sensor, third temperature sensor and fourth temperature sensor, respectively install in the refrigerated water outlet pipeline of electric refrigeration unit, refrigerated water return pipeline, cooling water outlet pipeline and cooling water return pipeline, respectively for measuring the temperature of refrigerated water outlet, the temperature of refrigerated water return, the temperature of cooling water outlet and the temperature of cooling water return.

[0029] Processing module: for receiving the temperature of refrigerated water outlet, the temperature of refrigerated water return, the temperature of cooling water outlet and the temperature of cooling water return, and calculating the refrigerated water temperature difference of the temperature of refrigerated water outlet and the temperature of refrigerated water return, and the cooling water temperature difference of the temperature of cooling water outlet and the temperature of cooling water return, when refrigerated water temperature difference and cooling water temperature difference are respectively in corresponding preset value range, send maintenance alarm signal, maintenance alarm signal is used to remind worker to carry out descaling and sundry cleaning to the pipeline of condenser and evaporator.

[0030] As Figure 1 And Figure 2 The utility model further includes: descaling mechanism, descaling mechanism is used to be inserted into condenser and evaporator pipeline, and constantly through artificial rotation to carry out cleaning to sundry and dirt.

[0031] ​The descaling mechanism comprises a water inlet hose, a water jet pipe, a water inlet branch pipe, a capillary spray pipe and a brush assembly.

[0032] The outer end of the water inlet hose is connected to an external water source through a water pump; the outer end of the water jet pipe is connected to the inner end of the water inlet hose, and the end of the inner end of the water jet pipe is expanded outward to form an expansion interface, and the water jet pipe is used to receive high-pressure water from the water inlet hose.

[0033] The inner end of the water inlet branch pipe is closed, and the outer end of the water inlet branch pipe is used to be sleeved on the periphery of the inner end of the water jet pipe and is connected to the expansion interface of the water jet pipe; the capillary spray pipe is arranged around the outer wall of the water inlet branch pipe and is arrayed, the proximal end of the capillary spray pipe is connected to the water inlet branch pipe, the distal end of the capillary spray pipe is close to the inner wall of the condenser and the evaporator pipeline, and the capillary spray pipe is used to flush the sundries and dirt on the inner wall of the condenser and the evaporator pipeline.

[0034] The brush assembly is arranged along the running direction of the water inlet branch pipe and is hung on both ends of the water inlet branch pipe, and the brush assembly is used to clean stubborn sundries in the condenser and the evaporator pipeline.

[0035] The brush assembly is detachable and simple to replace, and the brush assembly comprises a plurality of strip-shaped arc-shaped plates and a plurality of brushes.

[0036] The plurality of strip-shaped arc-shaped plates are arranged around the water inlet branch pipe and extend to the inner wall of the water inlet branch pipe at one end close to the outer end of the water inlet branch pipe, and are hung on the outer end of the water inlet branch pipe; the other end of each arc-shaped plate is clamped on the outer wall close to the water inlet branch pipe.

[0037] The plurality of brushes are fixed on the strip-shaped plates and are arrayed, and the plurality of brushes are used to clean deep dirt on the condenser and the evaporator pipeline when the descaling mechanism is rotated or moved along the running direction of the condenser and the evaporator pipeline.

[0038] The acquisition terminal further comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, which are respectively installed on the chilled water outlet pipeline, the chilled water return pipeline, the cooling water outlet pipeline and the cooling water return pipeline of the electric refrigerating unit, and are respectively used to measure the pressure of the chilled water outlet pipeline, the pressure of the chilled water return pipeline, the pressure of the cooling water outlet pipeline and the pressure of the cooling water return pipeline.

[0039] The processing module is further used to calculate the chilled water pressure difference between the chilled water outlet pipeline and the chilled water return pipeline, and the cooling water pressure difference between the cooling water outlet pipeline and the cooling water return pipeline; and send a maintenance alarm signal when the chilled water pressure difference and the cooling water pressure difference are within the pressure preset value range.

[0040] The utility model discloses can calculate the chilled water temperature difference of the temperature of chilled water export and the temperature of chilled water return water, and the cooling water temperature difference of the temperature of cooling water export and the temperature of cooling water return water, when the chilled water temperature difference and the cooling water temperature difference are respectively located in the corresponding preset value range, send maintenance alarm signal, and maintenance alarm signal can remind the worker to carry out descaling and sundry cleaning to the pipeline of condenser and evaporator, when descaling, utilize the descaling mechanism in the utility model, and the descaling mechanism is inserted into the pipeline of condenser and evaporator, and utilize high pressure water to clean the sundry in the inside of condenser and evaporator pipeline, and make descaling mechanism rotate unceasingly, so that the brush 15 of descaling mechanism unceasingly washes the inner wall of condenser and evaporator pipeline, reaches the best descaling effect.

[0041] The above is only the preferred embodiment of the utility model, and does not use to limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A maintenance alarm system for a central cooling plant, characterized in that The application relates to a centralized cooling station performance parameter acquisition and maintenance system. The system comprises a collection terminal installed on the periphery of the centralized cooling station, a processing module interacting with the collection terminal, and a detection module interacting with the processing module. The collection terminal is used for collecting performance parameters of an electric refrigerating unit of the centralized cooling station. The processing module is used for receiving the performance parameters collected by the collection terminal, processing the performance parameters, and sending a maintenance alarm signal. The collection terminal comprises first, second, third and fourth temperature sensors respectively installed on a chilled water outlet pipeline, a chilled water return pipeline, a cooling water outlet pipeline and a cooling water return pipeline of the electric refrigerating unit, and used for measuring the temperature of chilled water outlet, the temperature of chilled water return, the temperature of cooling water outlet and the temperature of cooling water return. The processing module is used for receiving the temperature of chilled water outlet, the temperature of chilled water return, the temperature of cooling water outlet and the temperature of cooling water return, calculating the chilled water temperature difference between the temperature of chilled water outlet and the temperature of chilled water return and the cooling water temperature difference between the temperature of cooling water outlet and the temperature of cooling water return, and sending the maintenance alarm signal when the chilled water temperature difference and the cooling water temperature difference are respectively within the corresponding preset value range. The maintenance alarm signal is used for reminding workers to clean the pipelines of the condenser and the evaporator.

2. A maintenance alarm system for a central cooling plant according to claim 1, characterized in that The system further comprises a cleaning mechanism used for extending into the pipelines of the condenser and the evaporator, and continuously cleaning the dirt and sundries by manual rotation. The cleaning mechanism comprises: a water inlet hose (10) having an outer end connected to an external water source through a water pump; a water spraying pipe (11) having an outer end connected to an inner end of the water inlet hose (10) and an inner end having an expanded interface for receiving high-pressure water from the water inlet hose (10); a water inlet branch pipe (12) having a closed inner end and an outer end sleeved on the outer periphery of the inner end of the water spraying pipe (11) and connected to the expanded interface of the water spraying pipe (11); a capillary spraying pipe (13) arranged around the outer wall of the water inlet branch pipe (12) and having a proximal end connected to the water inlet branch pipe (12) and a distal end close to the inner wall of the pipeline of the condenser and the evaporator and used for flushing the dirt and sundries on the inner wall of the pipeline of the condenser and the evaporator; 3. A maintenance alarm system for a central cooling plant according to claim 2, characterized in that a brush assembly arranged along the water inlet branch pipe (12) and hung on both ends of the water inlet branch pipe (12) and used for deeply cleaning stubborn dirt in the pipeline of the condenser and the evaporator. The brush assembly is detachable and simple to replace. The brush assembly comprises: a plurality of strip-shaped arc-shaped plates (14) arranged around the water inlet branch pipe (12) and having one end close to the outer end of the water inlet branch pipe (12) extended to the inner wall of the water inlet branch pipe (12) and hung on the outer end of the water inlet branch pipe (12), and the other end of each arc-shaped plate (14) clamped on the outer wall close to the water inlet branch pipe (12); a plurality of brushes (15) fixed on the strip-shaped plates and arranged in an array, and used for cleaning deep dirt on the pipeline of the condenser and the evaporator when the cleaning mechanism is rotated or moved along the pipeline of the condenser and the evaporator.

4. The maintenance alarm system for a central cooling plant of claim 1, wherein, The collection terminal further comprises a first pressure sensor, a second pressure sensor, a third pressure sensor and a fourth pressure sensor, which are respectively installed on the chilled water outlet pipeline, the chilled water return pipeline, the cooling water outlet pipeline and the cooling water return pipeline of the electric refrigerating unit, and are respectively used for measuring the pressure of the chilled water outlet pipeline, the pressure of the chilled water return pipeline, the pressure of the cooling water outlet pipeline and the pressure of the cooling water return pipeline. The processing module is further used for calculating a chilled water pressure difference between the chilled water outlet pipeline and the chilled water return pipeline and a cooling water pressure difference between the cooling water outlet pipeline and the cooling water return pipeline, and sending a maintenance alarm signal when the chilled water pressure difference and the cooling water pressure difference are within a pressure preset value range.

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