CN214249781U - Central heating control system and central heating system - Google Patents

Abstract

The utility model relates to a heating field especially relates to central heating control system and central heating system. A central heating control system is applied to a central heating system and comprises a comprehensive control device, wherein the comprehensive control device is electrically connected with an adjusting element in the central heating system; the centralized heating control system also comprises a PMV control device, the PMV control device is in communication connection with the comprehensive control device, the PMV control device can acquire indoor PMV parameters and obtain real-time PMV values through calculation, and the comprehensive control device can receive the PMV values and control the adjusting elements to adjust the indoor heating load so that the indoor PMV values are located in a target interval. The utility model has the advantages that: the indoor heat supply amount can be accurately controlled, energy is saved, and the comfort level of an indoor human body is improved.

Description

Central heating control system and central heating system

Technical Field

The utility model relates to a heating field especially relates to central heating control system and central heating system.

Background

The centralized heating control system is applied to a centralized heating system and used for controlling a centralized heating pipeline system so that the centralized heating pipeline system can convey high-temperature hot water or steam of a centralized heat source to each community for heating.

The existing centralized heating control system controls the heating load by taking the water supply temperature as a control target, and the water supply temperature is set by self according to an empirical value, so that the real heat demand of a user cannot be accurately reflected, and the heating load supplied according to the water supply temperature and the actual heat load have certain deviation, thereby causing energy waste and discomfort for the user.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a central heating control system, technical scheme is as follows:

a central heating control system is applied to a central heating system and comprises a comprehensive control device, wherein the comprehensive control device is electrically connected with an adjusting element in the central heating system; the centralized heating control system also comprises a PMV control device, the PMV control device is in communication connection with the comprehensive control device, the PMV control device can acquire indoor PMV parameters and obtain real-time PMV values through calculation, and the comprehensive control device can receive the PMV values and control the adjusting elements to adjust the indoor heating load so that the indoor PMV values are located in a target interval.

So set up, can be according to the actual demand of using heat in room, the heating load of the indoor required reality of accurate control, the energy can be saved to improve indoor human comfort level.

In one embodiment, the PMV control device includes a PMV processing module and a data transmission module that are communicatively connected to each other, and the integrated control device includes a data receiving module and a controller, where the data receiving module is communicatively connected to the controller and the data transmission module, respectively.

So set up, realize the communication between said PMV controlling means and said integrated control device.

In one embodiment, the PMV control apparatus further includes a signal acquisition module and a plurality of acquisition elements, the signal acquisition module is respectively in communication connection with the acquisition elements and the PMV processing module, and the plurality of acquisition elements are capable of acquiring at least part of the PMV parameters.

So set up, can gather the various parameters of indoor air, the parameter that will gather transmits for signal acquisition module, and signal acquisition module turns into analog signal with the signal of telecommunication, transmits again for PMV processing module.

In one embodiment, the PMV control apparatus further comprises a second input module, the second input module being communicatively coupled to the PMV processing module, through which at least a portion of the PMV parameters can be input.

So set up, through input module input people's clothes thermal resistance value, metabolism rate value or other numerical values to can adjust people's clothes thermal resistance value and metabolism rate value according to actual conditions.

In one embodiment, the PMV control device further includes a circuit board, and the PMV processing module, the data transmission module and the signal acquisition module are all disposed on the circuit board.

In one embodiment, the PMV control device further includes a first connection terminal, the first connection terminal is disposed on the circuit board, an input end of the first connection terminal is electrically connected to the collecting element, and an output end of the first connection terminal is electrically connected to the signal collecting module.

In one embodiment, the PMV control device further includes a transformer and a second connection terminal, an input terminal of the transformer is electrically connected to the second connection terminal, and an output terminal of the transformer is electrically connected to the PMV processing module, the data transmission module, the first connection terminal and the signal acquisition module, respectively.

In one embodiment, the data transmission module is a DTU data transmission module, and the data reception module is a DTU data reception module.

By the arrangement, lines can be saved, and the system is simplified.

In one embodiment, the integrated control device further comprises a human-computer interaction module, the human-computer interaction module is in communication connection with the controller, the central heating control system further comprises a dispatching center, and the human-computer interaction module is in communication connection with the dispatching center, can send signals to the dispatching center and can receive signals from the dispatching center.

So set up, then need not set up the router alone again on the rack and carry out the communication, can reduce cost, and save the space of rack.

The utility model discloses still provide following technical scheme:

a central heating system comprises the central heating control system.

Compared with the prior art, the utility model provides a central heating control system, through setting up PMV controlling means, with for indoor providing with the heat supply volume that actual heat load is closer, PMV controlling means can acquire indoor PMV parameter, comprehensive consideration and the relevant a great deal of factor of human hot comfort, thereby control indoor heat supply volume through controller control adjusting element, make indoor PMV value control in the target interval, with the comfort and can the energy can be saved for the user.

Drawings

Fig. 1 is a schematic structural diagram of a PMV control device provided by the present invention;

fig. 2 is a schematic structural diagram of a central heating control system provided by the present invention.

The symbols in the drawings represent the following meanings:

100. a central heating control system; 10. a dispatching center; 20. a comprehensive control device; 21. a controller; 211. a port; 22. a human-computer interaction module; 23. a cabinet; 24. a first input module; 25. an output module; 251. an adjustment element; 26. a data receiving module; 30. a PMV control device; 31. a circuit board; 32. a PMV processing module; 33. a data transmission module; 34. a first connection terminal; 35. a second connection terminal; 36. a second input module; 37. a signal acquisition module; 38. a transformer; 39. a collection element; 200. and (4) moving the base station.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments 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 work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present invention provides a central heating system, which supplies steam and hot water generated by a central heat source to a city, a town or a part of the heat required for production, heating and life through a pipe network.

The central heating system includes a central heating control system 100 and a central heating pipeline system (not shown), and the central heating control system 100 is used for controlling the central heating pipeline system, so that the central heating pipeline system can normally operate, and the heat of the central heating pipeline system can be reasonably distributed.

Referring to fig. 2, the central heating control system 100 includes a dispatching center 10 and an integrated control device 20, the integrated control device 20 is in communication connection with the dispatching center 10, the dispatching center 10 and the integrated control device 20 can perform bidirectional communication, the integrated control device 20 transmits a signal to the dispatching center 10 so that a worker can monitor an operation state of the central heating control system 100, and simultaneously, the worker sends a control signal to the integrated control device 20 through the dispatching center 10 and remotely makes a corresponding control command through the dispatching center 10. It should be explained that, the utility model discloses well electric connection indicates to connect with electric cable, contact pin or other material objects, and communication connection is worth adopting electric connection or wireless signal to connect.

Specifically, the integrated control device 20 includes a controller 21, a human-computer interaction module 22 and a cabinet 23, the controller 21 is disposed in the cabinet 23, and the human-computer interaction module 22 is disposed on a surface of the cabinet 23 for a worker to check and operate. The human-computer interaction module 22 is in communication connection with the controller 21 and the scheduling center 10, respectively, the human-computer interaction module 22 sends signals to the mobile base station 200, and the scheduling center 10 receives signals from the mobile base station 200. In this embodiment, the Controller 21 is a Programmable Logic Controller (PLC), and in other embodiments, the Controller 21 may also be a single chip, a distributed Controller, or another type of Controller.

In this embodiment, the port 211 is disposed on the controller 21, the port 211 is connected to the switch 212, the human-computer interaction module 22 is connected to the switch 212 through the network cable, and the switch 212 is disposed to connect the port 211 to a plurality of devices, of course, in other embodiments, the human-computer interaction module 22 can be directly connected to the port 211 through a cable or a pin, which is not limited by the present invention.

Preferably, in the embodiment, the human-computer interaction module 22 has a communication function, that is, the human-computer interaction module 22 can perform bidirectional communication with the dispatch center 10 through the TCP/IP protocol, and no additional router is required, so that the cost can be saved, and the internal space of the cabinet 23 can be saved.

The integrated control device 20 further includes a first input module 24 and an output module 25, and the first input module 24 and the output module 25 are respectively connected to the controller 21 in a communication manner. In this embodiment, the first input module 24 is connected to the controller 21 through pins, and the output module 25 is connected to the first input module 24 through pins, in other embodiments, the output module 25 may also be directly connected to the controller 21 through pins, or connected to the first input module 24 or the controller 21 through a cable.

The first input module 24 is used for collecting parameters of each device in the central heating pipeline system, such as temperature parameters, pressure parameters, heating load parameters, power consumption parameters, circulating water pump parameters, water replenishing pump parameters and the like of each device, the output module 25 is electrically connected with each device in the central heating pipeline system, such as the circulating water pump, the water replenishing pump, the adjusting element 251 and the like, and the collected parameters are transmitted to the controller 21 for calculation and analysis, so that corresponding control instructions are sent to each device.

Referring to fig. 1, the central heating control system 100 further includes a PMV control device 30, which is a predictive Mean volume (Predicted Mean volume) and takes the basic equation of human body thermal balance and the grade of psychophysiological subjective thermal sensation as a starting point, and comprehensively considers the overall evaluation indexes of a plurality of relevant factors related to human body thermal comfort. The PMV control device 30 is in communication connection with the controller 21, the PMV control device 30 can collect indoor PMV parameters in real time, calculate the collected PMV parameters to obtain a real-time PMV value, transmit the PMV value to the controller 21, and compare the PMV value with a target interval, so that the adjusting element 251 is controlled to adjust the indoor heat supply amount, and the adjusting element 251 does not adjust the indoor heat supply amount until the real-time PMV value is located in the target interval. The adjusting element 251 may be an electric adjusting ball valve, an electric adjusting butterfly valve, or the like capable of adjusting the flow rate. In this embodiment, the target interval is-0.5-0.5, and of course, in other embodiments, the target interval may also be other interval values according to different criteria.

It can be understood that the conventional district heating control system 100 adjusts the indoor heating amount by using the water supply temperature as a control target, and if the actual water supply temperature deviates from the set water supply temperature, the controller 21 adjusts the adjusting element 251 to adjust the indoor heating amount, and the water supply temperature is generally a single parameter set according to an empirical value, which cannot accurately reflect the actual indoor heating demand and also cannot reflect the real comfort of the human body. The utility model discloses a central heating control system 100 is through setting up PMV controlling means 30, has comprehensively considered a plurality of relevant factors that are relevant with the hot comfort of human body, can accurately adjust the heat supply according to the hot comfort of indoor human body, makes the human body feel comfortable to, the heat supply that provides can not be too big, thereby can the energy saving.

The PMV control device 30 includes a circuit board 31, a PMV processing module 32 and a data transmission module 33, the PMV processing module 32 and the data transmission module 33 are both disposed on the circuit board 31, the PMV processing module 32 is electrically connected to the data transmission module 33, the PMV processing module 32 has a PMV model algorithm therein, and the PMV parameters are calculated by the PMV model algorithm. The integrated control device 20 further includes a data receiving module 26, the data receiving module 26 is in communication connection with the controller 21 through the switch 212 and the port 211, the data transmitting module 33 transmits data to the mobile base station 200, and the data receiving module 26 receives data from the mobile base station 200 and then transmits the data to the controller 21. Of course, in other examples, the PMV control device 30 may not be provided with the circuit board 31, and the PMV processing module 32 is directly connected to the data transmission module 33 in communication.

In this embodiment, the number of the ports 211 on the controller 21 is one, and the data receiving module 26 is connected to the switch 212 through the network cable, however, in other embodiments, the number of the ports 211 may also be multiple, and the data receiving module 26 is further directly connected to the ports 211 through the cable or the pin, and the present invention is not limited to the connection manner of the human-computer interaction module 22 to the controller 21.

Preferably, the data transmission module 33 and the data reception module 26 are a DTU data transmission module and a DTU data transmission module, and the data transmission module 33 and the data reception module 26 communicate with each other in a wireless manner such as GPRS or WIFI. The DTU refers to a Data Terminal Unit (Data Terminal Unit), and has the advantages of rapid and flexible networking, short construction period, low cost, wide network coverage, etc., and since the distance between the dispatching center 10 and the integrated control device 20 is long, the integrated control device 20 and the PMV control device 30 have a certain distance, and the trouble of connection caused by cable connection can be avoided through wireless connection. In other embodiments, the data transfer module 33 may also be a router or other device capable of data transfer.

PMV controlling means 30 still includes first binding post 34, second binding post 35 and signal acquisition module 37, acquisition element 39 is connected to first binding post 34's input, signal acquisition module 37 is connected to first binding post 34's output, signal acquisition module 37 and PMV processing module 32 electric connection, acquisition element 39 can gather at least partial PMV parameter, signal acquisition module 37 converts the signal of telecommunication of gathering element 39 and gathering into analog signal, and the retransmission is handled for PMV processing module 32, external power source is connected to second binding post 35's input.

The collecting element 39 includes a temperature sensor, a humidity sensor, a wind speed measuring instrument and a radiation temperature sensor, which are respectively used for measuring the temperature, the relative humidity and the wind speed of the indoor air and the radiation temperature of the indoor environment to the human body. The acquisition element 39 is not limited to the acquisition element 39 described above, and other acquisition elements 39 may be added depending on the desired PMV parameters.

The PMV control device 30 further includes a second input module 36, the second input module 36 is disposed on the circuit board 31 and electrically connected to the PMV processing module 32, and the user can input some PMV parameters, such as a thermal resistance value and a metabolic rate value of clothes of a person, through the second input module 36, and can change the thermal resistance value and the metabolic rate value of clothes of the person according to specific situations, so as to obtain a more accurate PMV value.

Preferably, in this embodiment, the second input module 36 further has an LED display function, which can display the previously set values of the thermal resistance and metabolism rate of the clothes of the person, and of course, the values that the user can input through the second input module 36 are not limited to the above two parameters.

The PMV control device 30 further includes a transformer 38, the transformer 38 is disposed on the circuit board 31, an input end of the transformer 38 is electrically connected to the second connection terminal 35, and an output end of the transformer 38 is electrically connected to the PMV processing module 32 and the first connection terminal 34, respectively, so as to transform the external 220V ac power and provide the voltage required by the internal devices of the PMV control device 30. In this embodiment, the transformer 38 converts 220V ac power to 24V dc power, and in other embodiments, the transformer 38 may also convert 220V ac power to 12V ac power, 220V ac power to 12V dc power, or other types of transformers according to the voltages required by the devices in the PMV control device 30.

The output end of the transformer 38 is also electrically connected to the second input module 36, the signal acquisition module 37 and the data transmission module 33, so as to provide the required voltage to the second input module 36, the signal acquisition module 37 and the data transmission module 33.

In the working process, the acquisition element 39 acquires various indoor PMV parameters, the signal acquisition module 37 converts the acquired electric signals into digital quantity signals and transmits the digital quantity signals to the PMV processing module 32, meanwhile, the PMV processing module 32 calculates the current PMV value according to the heat resistance value and the metabolism rate value of the clothes input through the second input module 36, the PMV processing module 32 transmits the current PMV value to the data transmission module 33, the data transmission module 33 transmits the current PMV value to the data receiving module 26, the data receiving module 26 transmits the current PMV value to the controller 21, the controller 21 analyzes and calculates after receiving the PMV value, compares the PMV value with a target interval to judge whether the heat supply amount in the current room is proper or not, if the heat supply amount is too large, the controller 21 controls the adjustment element 251 to be turned off, if the heat supply amount is too small, the controller 21 controls the adjustment element 251 to be turned on until the PMV value is in the target interval, and real-time control and adjustment are realized.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A central heating control system is applied to a central heating system and comprises an integrated control device (20), wherein the integrated control device (20) is electrically connected with a regulating element (251) in the central heating system;

the central heating control system is characterized by further comprising a PMV control device (30), wherein the PMV control device (30) is in communication connection with the comprehensive control device (20), the PMV control device (30) can obtain indoor PMV parameters and obtain real-time PMV values through calculation, and the comprehensive control device (20) can receive the PMV values and control the adjusting element (251) to adjust indoor heating quantity so that the indoor PMV values are located in a target interval.

2. A central heating control system according to claim 1, characterized in that the PMV control device (30) comprises a PMV processing module (32) and a data transmission module (33) communicatively connected to each other, the integrated control device (20) comprises a data receiving module (26) and a controller (21), the data receiving module (26) being communicatively connected to the controller (21) and the data transmission module (33), respectively.

3. A central heating control system according to claim 2, wherein the PMV control device (30) further comprises a signal acquisition module (37) and a plurality of acquisition elements (39), the signal acquisition module (37) being in communication connection with the acquisition elements (39) and the PMV processing module (32), respectively, the plurality of acquisition elements (39) being capable of acquiring at least part of the PMV parameters.

4. A central heating control system according to claim 3, characterized in that the PMV control device (30) further comprises a second input module (36), the second input module (36) being in communication with the PMV processing module (32), at least part of the PMV parameters being able to be input through the second input module (36).

5. A central heating control system according to claim 3, wherein the PMV control device (30) further comprises a circuit board (31), the PMV processing module (32), the data transmission module (33) and the signal acquisition module (37) being provided on the circuit board (31).

6. A central heating control system according to claim 5, wherein the PMV control device (30) further comprises a first connection terminal (34), the first connection terminal (34) is disposed on the circuit board (31), an input end of the first connection terminal (34) is electrically connected to the acquisition element (39), and an output end of the first connection terminal is electrically connected to the signal acquisition module (37).

7. A central heating control system according to claim 6, wherein the PMV control device (30) further comprises a transformer (38) and a second connection terminal (35), the transformer (38) having an input electrically connected to the second connection terminal (35) and an output electrically connected to the PMV processing module (32), the data transmission module (33), the first connection terminal (34) and the signal acquisition module (37), respectively.

8. A central heating control system according to claim 2, characterized in that the data transmission module (33) is a DTU data transmission module (33) and the data reception module (26) is a DTU data reception module (26).

9. A central heating control system according to claim 2, characterized in that the integrated control device (20) further comprises a human-machine interaction module (22), said human-machine interaction module (22) being in communication connection with the controller (21), the central heating control system further comprising a dispatch center (10), said human-machine interaction module (22) being in communication connection with the dispatch center (10) and being capable of sending signals to the dispatch center (10) and of receiving signals from the dispatch center (10).

10. A central heating system comprising a central heating control system according to any one of claims 1 to 9.

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