CN210072434U - Heater centralized control system - Google Patents

Heater centralized control system Download PDF

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Publication number
CN210072434U
CN210072434U CN201921402948.4U CN201921402948U CN210072434U CN 210072434 U CN210072434 U CN 210072434U CN 201921402948 U CN201921402948 U CN 201921402948U CN 210072434 U CN210072434 U CN 210072434U
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China
Prior art keywords
heater
temperature
control
contacts
contact
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CN201921402948.4U
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Chinese (zh)
Inventor
成佳富
周钦贤
汤野
蔡冰子
黄凯龙
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Guangdong Power Grid Co Ltd
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Guangdong Power Grid Co Ltd
Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
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Priority to CN201921402948.4U priority Critical patent/CN210072434U/en
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Abstract

The utility model discloses a heater centralized control system, which comprises a plurality of temperature and humidity sensors, wherein each temperature and humidity sensor is electrically connected with an intermediate relay; a group of contacts of all the intermediate relays are mutually connected in parallel to form a starting contact group; the heater centralized control system also comprises a plurality of heaters, the heaters are mutually connected in parallel to form a heater group, the heater group is connected in series with the starting contact group, and the heater group is connected in series with the power supply through the starting contact group. The embodiment of the utility model provides a heater centralized control system carries out centralized control with the atmospheric control ware in the interval, and the operating personnel can real time monitoring atmospheric control ware's in service behavior, and atmospheric control ware maintains simply, improves and maintains efficiency to heater and its control system; the abnormal rate of the temperature and humidity controller is reduced, and the service life of the heater and the control system thereof is prolonged.

Description

Heater centralized control system
Technical Field
The utility model belongs to the technical field of the heater, especially, relate to a heater centralized control system.
Background
With the development of power grids being converted into intellectualization, primary equipment of transformer substations gradually tends to be GIS equipment. The requirements on the temperature and humidity of secondary elements such as cables, relays and the like in a control cubicle or a mechanism box in a transformer substation are higher and higher, and the conditions that the insulation of a wire core is aged, a temperature and humidity controller is damaged, the temperature of the control cubicle or the mechanism box is too high or too low and the like are increasingly serious due to the heater problem of the existing operation equipment.
The humiture of the GIS mechanism incasement of present transformer substation is adjusted by the heater, because GIS equipment mechanism case is different from conventional equipment, can not audio-visual humiture controller and heater of seeing, be unfavorable for fortune dimension personnel to have the normal inspection that starts and judge the humiture condition in the mechanism case to the heater, if when the temperature was too high, the humiture controller of settlement should stop work, if humiture controller damages this moment, the heater is in the running state always, fortune dimension personnel can't the correct judgement mechanism incasement humiture condition again, then lead to mechanism case high temperature, probably burn out the secondary cable, cause mechanism malfunction even, seriously influence the steady operation of equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heater centralized control system to solve above technical problem.
To achieve the purpose, the utility model adopts the following technical proposal:
a central control system for a heater comprises a plurality of temperature and humidity sensors, wherein each temperature and humidity sensor is electrically connected with an intermediate relay;
a group of contacts of all the intermediate relays are connected in parallel to form a starting contact group;
the heater centralized control system also comprises a plurality of heaters, the heaters are mutually connected in parallel to form a heater group, the heater group is connected in series with the starting contact group, and the heater group is connected in series with a power supply through the starting contact group;
when any one group of contacts in the starting contact group is closed, all the heaters start to work;
when the temperature and humidity sensor detects that the temperature is larger than a preset value, the temperature and humidity sensor sends a heater closing signal to trigger the intermediate relay to control the starting contact group to be disconnected.
As an optimized scheme of the utility model, the contact in the starting contact group is normally open contact.
As an optimized scheme of the utility model, temperature and humidity sensor's quantity, auxiliary relay's quantity are two.
As a preferred scheme of the present invention, another group of contacts of all the intermediate relays are connected in series to form a fault contact group, and the contacts of the fault contact group are normally closed contacts;
and the fault contact group is connected with an alarm in series.
As an optimized scheme of the utility model, intermediate relay's coil one end termination power supply's one end, the other end passes through temperature and humidity sensor's a set of normally open contact connects the other end of power.
Compared with the prior art, the embodiment of the utility model provides a following beneficial effect has:
the embodiment of the utility model provides a heater centralized control system carries out centralized control with the atmospheric control ware in the interval, and the operating personnel can real time monitoring atmospheric control ware's in service behavior, and atmospheric control ware maintains simply, improves and maintains efficiency to heater and its control system; the abnormal rate of the temperature and humidity controller is reduced, and the service life of the heater and a control system thereof is prolonged; the high benefit brought by installing the intelligent heater centralized control system meets the safe, economical and efficient concept of 7S management.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic diagram of a centralized control system for a heater according to an embodiment of the present invention.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are clearly and completely described with reference to the drawings in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, AC represents an AC power source, ZK represents an air switch, ZJ represents an intermediate relay, KH represents a temperature and humidity sensor, EH represents a heater, and the numbers in front of them represent serial numbers.
Specifically, this embodiment provides a heater centralized control system, including a plurality of temperature and humidity sensor, every temperature and humidity sensor electricity is connected with an auxiliary relay.
And one group of contacts of all the intermediate relays are connected in parallel to form a starting contact group.
The heater centralized control system further comprises a plurality of heaters, the heaters are connected in parallel to form a heater group, the heater group is connected in series with the starting contact group, and the heater group is connected in series with the power supply through the starting contact group.
When any one of the starting contact sets is closed, all the heaters start to work.
When the temperature and humidity sensor detects that the temperature is larger than a preset value, the temperature and humidity sensor sends a heater closing signal to trigger the intermediate relay to control the starting contact group to be disconnected.
Specifically, the contacts in the starting contact group are all normally open contacts. The number of the temperature and humidity sensors and the number of the intermediate relays are two.
And the other group of contacts of all the intermediate relays are mutually connected in series to form a fault contact group, and the contacts of the fault contact group are normally closed contacts.
And the fault contact group is connected with an alarm in series.
One end of a coil of the intermediate relay is connected with one end of a power supply, and the other end of the coil of the intermediate relay is connected with the other end of the power supply through a group of normally open contacts of the temperature and humidity sensor.
Therefore, when the working process of the embodiment is carried out, the air switch ZK is switched on, when any one of the temperature and humidity sensors 1KH and 2KH is started, the intermediate relay 1ZJ or 2ZJ is excited, the normally open contact is closed, and the heaters EH 1-Ehn are controlled to be started. Wherein n is an integer, and intermediate relay 1ZJ and 2ZJ are each other for reserve, and temperature and humidity sensor 1KH and 2KH are each other for reserve.
When two atmospheric control ware 1KH and 2KH all break down, the normally closed contact of auxiliary relay 1ZJ and 2ZJ is all closed, sends alarm signal by the alarm, and the operator's workstation can receive atmospheric control ware 1KH and 2KH fault signal, is convenient for fortune dimension personnel discovery and inspection.
In the figure, 1 and 2 are power supply terminals, 3 and 4 are control terminals, and 5 and 6 are signal terminals.
It should be noted that the environment where all devices of a substation are located is consistent. The heater centralized control system is suitable for all transformer substations, and the heaters in the transformer substations can be controlled and managed in a centralized manner only by arranging the heater centralized control system at intervals of switches of the transformer substations, so that the operation and maintenance efficiency is improved, the operation and maintenance cost is reduced, the power failure times are reduced, and the equipment operation environment is better improved.
Through the contacts of the two intermediate relays in parallel connection, when one temperature and humidity controller fails, the other group of temperature and humidity controllers can still work, and the reliability of temperature and humidity control is improved.
And a controller fault signal can be accessed into a background signal, so that the problem that operation and maintenance personnel cannot check the temperature and humidity controller in the mechanism box is solved.
In summary, according to the centralized control system for the heater provided by the embodiment, the temperature and humidity controllers in the intervals are controlled in a centralized manner, so that an operator can monitor the use conditions of the temperature and humidity controllers in real time, the temperature and humidity controllers are easy to maintain, and the maintenance efficiency of the heater and the control system thereof is improved; the abnormal rate of the temperature and humidity controller is reduced, and the service life of the heater and a control system thereof is prolonged; the high benefit brought by installing the intelligent heater centralized control system meets the safe, economical and efficient concept of 7S management.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are intended to be inclusive and therefore specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order discussed and illustrated, unless explicitly indicated as an order of performance. It should also be understood that additional or alternative steps may be employed.
When an element or layer is referred to as being "on" … … "," engaged with "… …", "connected to" or "coupled to" another element or layer, it can be directly on, engaged with, connected to or coupled to the other element or layer, or intervening elements or layers may also be present. In contrast, when an element or layer is referred to as being "directly on … …," "directly engaged with … …," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between … …" and "directly between … …", "adjacent" and "directly adjacent", etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region or section from another element, component, region or section. Unless clearly indicated by the context, use of terms such as the terms "first," "second," and other numerical values herein does not imply a sequence or order. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
Spatially relative terms, such as "inner," "outer," "below," "… …," "lower," "above," "upper," and the like, may be used herein for ease of description to describe a relationship between one element or feature and one or more other elements or features as illustrated in the figures. Spatially relative terms may be intended to encompass different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below … …" can encompass both an orientation of facing upward and downward. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. A central control system of a heater is characterized by comprising a plurality of temperature and humidity sensors, wherein each temperature and humidity sensor is electrically connected with an intermediate relay;
a group of contacts of all the intermediate relays are connected in parallel to form a starting contact group;
the heater centralized control system also comprises a plurality of heaters, the heaters are mutually connected in parallel to form a heater group, the heater group is connected in series with the starting contact group, and the heater group is connected in series with a power supply through the starting contact group;
when any one group of contacts in the starting contact group is closed, all the heaters start to work;
when the temperature and humidity sensor detects that the temperature is larger than a preset value, the temperature and humidity sensor sends a heater closing signal to trigger the intermediate relay to control the starting contact group to be disconnected.
2. The centralized heater control system of claim 1, wherein the contacts in the set of activation contacts are all normally open contacts.
3. The central heater control system according to claim 1, wherein the number of the temperature and humidity sensors and the number of the intermediate relays are two.
4. The central heater control system according to claim 1, wherein the other set of contacts of all the intermediate relays are connected in series with each other to form a fault contact set, and the contacts of the fault contact set are all normally closed contacts;
and the fault contact group is connected with an alarm in series.
5. The central heater control system according to claim 1, wherein one end of the coil of the intermediate relay is connected to one end of a power supply, and the other end of the coil of the intermediate relay is connected to the other end of the power supply through a set of normally open contacts of the temperature and humidity sensor.
CN201921402948.4U 2019-08-27 2019-08-27 Heater centralized control system Active CN210072434U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921402948.4U CN210072434U (en) 2019-08-27 2019-08-27 Heater centralized control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921402948.4U CN210072434U (en) 2019-08-27 2019-08-27 Heater centralized control system

Publications (1)

Publication Number Publication Date
CN210072434U true CN210072434U (en) 2020-02-14

Family

ID=69431184

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921402948.4U Active CN210072434U (en) 2019-08-27 2019-08-27 Heater centralized control system

Country Status (1)

Country Link
CN (1) CN210072434U (en)

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