CN219955479U - Intelligent optimizing system of heat supply circulating pump - Google Patents

Abstract

The utility model discloses an intelligent optimizing system of a heat supply circulating pump, which relates to the technical field of heat supply pipe networks and comprises a heating power station, a plate heat exchanger, a lift detection module and a controller, wherein the lift detection module comprises a second pressure sensor and a third pressure sensor which are arranged on a second water return pipe, the self-optimizing response module comprises a heat supply circulating pump, the heat supply circulating pump is connected with a frequency converter, a signal receiving end of the controller is electrically connected with the second pressure sensor and the third pressure sensor through a TPC intelligent collector, and the signal receiving end of the controller is also electrically connected with the frequency converter, and the intelligent optimizing system has the technical advantages that: a heat regulating mechanism is arranged in the first pipe network, and the opening and closing degree of the regulating valve is changed according to the temperature difference value of the water supply and return of the heat supply side; and a lift detection module and a self-optimizing response module are arranged in the second pipe network, are combined with the frequency converter, and are used for selecting an optimal operation working condition point and an optimal frequency of the heat supply circulating pump according to graphs generated by collecting lift values under different frequency of the frequency converter.

Description

Intelligent optimizing system of heat supply circulating pump

Technical Field

The utility model relates to the technical field of heat supply pipe networks, in particular to an intelligent optimizing system of a heat supply circulating pump.

Background

In a heating system, a heating network is divided into a primary network and a secondary network in a heating station, and a heating circulating pump is mainly used for conveying hot water to a user's home for heating through a pipeline in the secondary network heating system. The heat supply circulating pump in the prior art mainly has the following operation modes: the first is fixed parameter operation, which is set according to parameters designed by a design institute, and is not adjusted from the beginning of a heating period to the end of the heating period; the second is to adjust the frequency according to the initial cold, severe cold and final cold, and the whole heating period is divided into initial cold period, severe cold period and final cold period according to the average temperature condition of the heating period and the outdoor, and the frequency is 60% -80% when the frequency is initially cold, 80% -100% when the frequency is severe cold and 60% -80% when the frequency is final cold according to the frequency of the empirical frequency converter in different periods; thirdly, according to the set supply and return water pressure difference value, the supply and return water pressure collected by the system is used for carrying out difference value calculation, the calculation result is used as feedback, the feedback pressure difference is compared with a target pressure difference set manually, when the feedback pressure difference is greater than the target pressure difference, the automatic control system automatically reduces the operating frequency, and when the feedback pressure difference is less than the target pressure difference, the automatic control system automatically increases the operating frequency.

The sampling recording program is engineering software in the prior art and is used for collecting and recording data of signals in the experimental or industrial production process. The main function of the system is to collect and record input analog or digital signals in real time, so that multichannel collection can be realized, various types of sensors and test equipment are supported, and collected data can be processed and analyzed to generate charts or reports. The sampling recording program mainly comprises an acquisition control module, a data storage module, a data processing module and a report generation module, and can be widely applied to various fields such as environmental monitoring, medical diagnosis, industrial production and the like in practical application. The method can help users to acquire and record data in real time, rapidly analyze and process the data and generate corresponding reports, thereby improving the working efficiency, reducing the error rate and providing more powerful bases for decision making.

When the heat supply circulating pump adopts the first mode and the second mode, the working frequency of the circulating pump cannot be effectively determined to be actually matched with the site due to no historical data, lack of heat supply parameters, insufficient experience and the like, and generally, the flow exceeding the requirement exists, so that the electricity consumption is greatly increased due to the fact that the heat supply index is exceeded; in the third mode, although the automatic frequency adjustment is achieved, the given value of the pressure difference is still determined subjectively through the experience value of an operator, and meanwhile, the phenomenon of frequency adjustment oscillation of the circulating pump exists in the automatic adjustment process, so that the actual effect is possibly affected by unreasonable numerical values.

Disclosure of Invention

The device provides an intelligent optimizing system of a heat supply circulating pump, through setting up heat adjustment mechanism in first pipe network, set up lift detection module and self-optimizing response module in the second pipe network to according to the frequency variation output different lift values of converter, and then determined the best operating frequency of heat supply circulating pump, first pipe network also can provide stable heat source value simultaneously, concrete implementation is as follows:

an intelligent optimizing system of a heat supply circulating pump, comprising:

the heating station is respectively connected with a first pipe network at a heat source side and a second pipe network at a user side at two sides;

the heating end of the plate heat exchanger is connected in series with a second pipe network, and the second pipe network consists of a second water supply pipe and a second water return pipe which are connected in series;

the lift detection module comprises a second pressure sensor and a third pressure sensor which are arranged on the second water return pipe, and the third pressure sensor is used for detecting the water return pressure of the user side;

the self-optimizing response module comprises a heat supply circulating pump connected in series on a second water return pipe, the heat supply circulating pump is connected with a frequency converter, the installation position of the heat supply circulating pump is between a second pressure sensor and a third pressure sensor, the frequency converter is used for controlling the heat supply circulating pump to carry out heat transfer on a user side, and the second pressure sensor is used for detecting the pressure of the heat supply circulating pump;

and the signal receiving end of the controller is electrically connected with the second pressure sensor and the third pressure sensor through the TPC intelligent collector, and is also electrically connected with the frequency converter, and the lift detection module and the frequency converter measure the heat supply lift parameter of the user side and the power parameter of the heat supply circulating pump so as to enable the heat supply circulating pump to carry out frequency adjustment.

According to the technical scheme, the lift detection module and the self-optimizing response module are additionally arranged on the second pipe network, the plate heat exchanger, the lift detection module and the self-optimizing response module are integrated in the heating power station, the lift detection is respectively carried out under different power output by the frequency converter, a corresponding graph is further generated, the output power of the frequency converter under the optimal solution is selected according to the graph obtained by adopting the graph for several times, and the two modes of optimal efficiency and optimal flow can be selected.

Optionally, the second pipe network is connected to the heat source, the first pipe network is connected to the courtyard, and the first pipe network is connected in series to the heat conduction end of the plate heat exchanger, and is composed of a first water supply pipe and a first water return pipe which are connected in series.

Through the technical scheme, long-distance heat transfer can be realized between the heat source side and the user side in the secondary pipe network heat supply system, and the heat transfer efficiency is high; in the heating process, waste heat can be recovered in various modes, so that the energy consumption cost is reduced, a user only needs to install a radiator or a heat exchanger, potential safety hazards such as electric shock and leakage of the user are avoided, and the courtyard can be particularly divided into public buildings and residential buildings.

Optionally, the heat station is further internally provided with a heat adjusting mechanism integrated with the heat detecting module, and the heat adjusting mechanism comprises a second temperature sensor and a flowmeter which are arranged on the first water supply pipe, and further comprises a third temperature sensor and an adjusting valve which are arranged on the first water return pipe.

Optionally, the signal receiving end of the controller is further electrically connected with a second temperature sensor and a third temperature sensor through the TPC intelligent collector, and the signal output end thereof is electrically connected with the regulating valve.

According to the technical scheme, the opening and closing degree of the regulating valve is changed in the first pipe network according to the set water supply and return temperature difference, the temperature difference is related to the flow, the temperature difference is obtained by calculating the water supply and return temperatures in the primary pipe network, and the heat supply efficiency in the primary pipe network is improved by comparing the temperature difference with the set target temperature difference and linking the temperature difference with the regulating valve;

optionally, a network well chamber is additionally arranged on the first pipe network, a plurality of thermodynamic cells are connected on the second pipe network in parallel, and safety early warning modules are arranged in the network well chamber and the thermodynamic cells.

Optionally, taking installation of the safety pre-warning module in a network well room as an example, the safety pre-warning module comprises a displacement sensor, a first temperature sensor and a first pressure sensor which are arranged in the network well room and used for detecting the position state of the well lid, and the displacement sensor, the first temperature sensor and the first pressure sensor are electrically connected with a signal receiving end of the controller through the TPC intelligent collector.

Through the technical scheme, the displacement sensor detects and feeds back the state of the well lid, and has the function of well lid movement and active alarm of disconnection; the temperature and the pressure of the pipe network are collected and detected through the first temperature sensor and the first pressure sensor, so that the pipe network has an active alarming function of steep rise and steep fall, the first temperature sensor is specifically a PT 1000B-level sensor for collecting the temperature of the supply water and the return water, and the first pressure sensor is specifically a 0.5-level precision sensor for collecting the pressure of the supply water and the return water.

Optionally, the self-optimizing response module further comprises a water supplementing variable frequency pump, wherein the water supplementing variable frequency pump and the water supplementing pipe form a pressurizing water supplementing structure at the user side, the water outlet end of the water tank is connected with one end of the water supplementing pipe connected with the water supplementing variable frequency pump in series, and the other end of the water supplementing pipe is connected with the second water return pipe.

Optionally, the self-optimizing response module further comprises a pressure release valve, wherein the pressure release valve and the drain pipe form a pressure release drainage structure at the user side, the pressure release valve is connected to the drain pipe in series, and the drain pipe is connected with the second water return pipe.

Optionally, the signal output end of the controller is electrically connected with the water supplementing variable frequency pump and the pressure relief valve.

Through above technical scheme, the timely processing when second pipe network water pressure is too high or too low can be realized to pressure boost moisturizing structure and pressure release drainage structure, and its judgement basis mainly passes through the pressure sensor in the second pipe network. In summary, the utility model has the following beneficial technical effects:

1. according to the utility model, the heat regulating mechanism is arranged in the first pipe network, the opening and closing degree of the regulating valve is changed according to the temperature difference of the water supply and return at the heat supply side, and the calculated temperature difference is compared with the set target temperature difference, so that the heat supply efficiency and the heat supply stability are improved;

2. according to the utility model, the lift detection module and the self-optimizing response module are arranged in the second pipe network, and are combined with the frequency converter, so that a graph generated according to the lift values under different frequency converter frequencies is acquired, and the optimal operation working condition point and the optimal frequency of the heat supply circulating pump are selected;

3. the utility model has simple structure, and improves the stability and safety of the heating pipe network in the use process by arranging the safety early warning modules on the user side and the heat source side.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic electrical construction of the present utility model;

FIG. 3 is a schematic diagram of a thermal station in accordance with the present utility model;

FIG. 4 is a graph of head at optimum pump efficiency for the present utility model;

fig. 5 is a graph of the head of the present utility model at optimum pump flow.

Reference numerals illustrate:

1. the system comprises a heating station, 2, a heat regulating mechanism, 3, a lift detection module, 4, a self-optimizing response module, 5, a courtyard, 6, a first pipe network, 7, a second pipe network, 8, a plate heat exchanger, 9, a safety pre-warning module, 10, a heat source, 11, a network well chamber, 12, a heating chamber, 13, a TPC intelligent collector, 14, a controller, 15, a water tank, 16, a frequency converter, 201, a third temperature sensor, 202, a second temperature sensor, 203, a flowmeter, 204, a regulating valve, 301, a second pressure sensor, 302, a third pressure sensor, 401, a water supplementing variable frequency pump, 402, a pressure relief valve, 403, a heat supply circulating pump, 501, a public building, 502, a residential building, 601, a first water supply pipe, 602, a first water return pipe, 701, a second water supply pipe, 702, a second water return pipe, 703, a water supplementing pipe, 704, a water drain pipe, 901, a displacement sensor, 902, a first temperature sensor, 903 and a first pressure sensor.

Detailed Description

The following describes specific embodiments of the utility model with reference to the drawings and examples:

it should be noted that the structures, proportions, sizes, etc. shown in the drawings are merely for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims.

Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.

The utility model is described in further detail below with reference to fig. 1-5.

The embodiment of the utility model discloses an intelligent optimizing system of a heat supply circulating pump.

Example 1

Referring to fig. 1 to 5, the embodiment discloses an intelligent optimizing system of a heat supply circulating pump, including a heat station 1, two sides of which are respectively connected with a first pipe network 6 at a heat source side and a second pipe network 7 at a user side, the second pipe network 7 is communicated with a heat source 10, the first pipe network 6 is communicated with a courtyard 5, the courtyard 5 includes a plurality of public buildings 501 and residential buildings 502, a plate heat exchanger 8, a lift detection module 3 and a self-optimizing response module 4 are integrated in the heat station 1, the lift detection module 3 includes a second pressure sensor 301 and a third pressure sensor 302 which are arranged on the second water return pipe 702, the self-optimizing response module 4 includes a heat supply circulating pump 403 which is connected in series with the second water return pipe 702, the heat supply circulating pump 403 is connected with a frequency converter 16, the installation position of the heat supply circulating pump 403 is between the second pressure sensor 301 and the third pressure sensor 302, a signal receiving end of a controller 14 in the structure is electrically connected with the second pressure sensor 301 and the third pressure sensor 302 through a TPC intelligent collector 13, and is also electrically connected with the frequency converter 16, the frequency converter 16 is controlled to send out different frequency values to realize the corresponding power cycle values of the heat supply circulating pump after the heat supply circulating pump is selected according to the measured, and the optimum power cycle values are selected.

The heating end of the plate heat exchanger 8 is connected in series with the second pipe network 7, and the second pipe network 7 is composed of a second water supply pipe 701 and a second water return pipe 702 which are connected in series; the first pipe network 6 is connected in series with the heat conducting end of the plate heat exchanger 8, and is composed of a first water supply pipe 601 and a first water return pipe 602 which are connected in series, the plate heat exchanger 8 in the structure is composed of metal plates for convection heat transfer, a narrow channel is formed between two adjacent plates, heat exchange is carried out through media flowing through the channels, and the plate heat exchanger specifically comprises a plate sheet, a pressing strip, a fixing frame and a connecting piece; the plate is generally corrugated or flat, and plates made of different materials, such as stainless steel, titanium alloy and the like, can be adopted according to requirements. The bead acts as a member for clamping the panels to enhance the seal between the panels. The fixing frame is used as a base for supporting the plate, plays a role in protecting the plate, and can conveniently detach and clean the plate heat exchanger.

Specific heat supply detection in the second pipe network 7 is as follows: according to the three stages of initial cold, severe cold and final cold, taking the initial cold period as an example, referring to fig. 4 and 5, the frequency converter 16 operates at frequencies of 50HZ, 45HZ, 40HZ, 35HZ, 30HZ and 25H respectively, and simultaneously detects the flow and lift values of the second pipe network 7 at the corresponding frequencies; the frequency change of the frequency converter 16 causes the flow change of the second pipe network 7, and the flow detection of the second pipe network 7 is a conventional detection means and can be performed by a flow meter; the flow and efficiency values at different frequencies are automatically calculated through the generated curve and the following formula, so that the heating circulation pump 403 selects proper output power.

The shaft power calculation formula of the heating circulation pump 403 is:

wherein W represents the shaft power, Q represents the flow of the second pipe network 7, g represents the gravitational acceleration, h represents the lift, M represents the motor efficiency, and the average efficiency of the motor is generally 87%.

The simplified shaft power is:

W＝3*Q*H

η＝W/D

where W represents the shaft power, Q represents the flow rate of the second pipe network 7, D represents the power read by variable frequency, and η represents the pump efficiency.

Referring to fig. 4 and 5, the self-optimizing of the heat circulation pump 403 is divided into flow optimizing and efficiency optimizing. Referring to fig. 4, when efficiency optimization is selected, the output value of the heat circulation pump 403 is a frequency value corresponding to the maximum efficiency value; referring to fig. 5, when the flow rate is optimal, the controller 14 determines which heating cycle the current heating system is in, and the system automatically calculates the flow rate required by the current second pipe network 7, and the output value of the heat circulation pump 403 is the frequency value corresponding to the maximum flow rate.

Example 2

Referring to fig. 1 to 3, and based on the above embodiment, the present embodiment further provides an intelligent optimizing system for a heat supply circulating pump, the heat station 1 includes a heat adjusting mechanism 2 integrated with a heat detecting module, the heat adjusting mechanism 2 includes a second temperature sensor 202 and a flow meter 203 disposed on a first water supply pipe 601, and further includes a third temperature sensor 201 and a regulating valve 204 disposed on a first water return pipe 602, in this structure, a signal receiving end of the controller 14 is further electrically connected with the second temperature sensor 202 and the third temperature sensor 201 through the TPC intelligent collector 13, and a signal output end thereof is electrically connected with the regulating valve 204, so that smooth heat supply of the first pipe network 6 is realized through the heat adjusting mechanism 2.

Example 3

Referring to fig. 1 to 2, and based on the above embodiment, the present embodiment further provides an intelligent optimizing system for a heat supply circulating pump, wherein a network well chamber 11 is additionally installed on the first pipe network 6, a plurality of thermal cells 12 are connected to the second pipe network 7 in parallel, and safety pre-warning modules 9 are respectively installed in the network well chamber 11 and the thermal cells 12.

Referring to fig. 1 to 2, taking installation of a safety pre-warning module 9 in a network well 11 as an example, the safety pre-warning module comprises a displacement sensor 901, a first temperature sensor 902 and a first pressure sensor 903 which are arranged in the network well 11 and used for detecting the position state of a well lid, and all the displacement sensor 901, the first temperature sensor 902 and the first pressure sensor 903 are electrically connected with a signal receiving end of a controller 14 through a TPC intelligent collector 13, in the structure, the TPC intelligent collector 13 provides positioning service through a Beidou module, and data acquisition is completed through a built-in bluetooth module, an FSK or a wired and displacement sensor, a temperature sensor and a pressure sensor; the Bluetooth module is linked with the mobile phone APP, the Bluetooth mobile phone APP is provided with a dual-power supply interface, a dual-communication interface (nboot/CAT 1 and mbus/modbus) is provided, and the Bluetooth mobile phone APP is linked with the data acquisition server through NBIOT or CAT 1.

Example 4

Referring to fig. 2 to 3, and based on the above embodiment, this embodiment further provides an intelligent optimizing system for a heat supply circulating pump, the self-optimizing response module 4 further includes a water supplementing variable frequency pump 401 and a pressure release valve 402, the water supplementing variable frequency pump 401, the water supplementing pipe 703 and the water tank 15 form a pressurizing water supplementing structure on the user side, the pressure release valve 402 and the water drain pipe 704 form a pressure releasing and draining structure on the user side, and the pressure stabilizing in the pipe network is realized by the linkage of the pressurizing water supplementing structure and the pressure releasing and draining structure with the pressure detecting component in the second pipe network 7 respectively.

The water outlet end of the water tank 15 is connected with one end of a water supplementing pipe 703 connected in series with the water supplementing variable frequency pump 401, the other end of the water supplementing pipe 703 is connected with a second water return pipe 702, the pressure relief valve 402 is connected in series with a water drain pipe 704, the water drain pipe 704 is connected with the second water return pipe 702, and the signal output end of the controller 14 in the structure is electrically connected with the water supplementing variable frequency pump 401 and the pressure relief valve 402.

Many other changes and modifications may be made without departing from the spirit and scope of the utility model. It is to be understood that the utility model is not to be limited to the specific embodiments, but only by the scope of the appended claims.

Claims (9)

1. The utility model provides a heat supply circulating pump intelligence optimizing system, includes heating power station (1), and its both sides connect first pipe network (6) of heat source side and user side's second pipe network (7) respectively, its characterized in that still includes:

the heating end of the plate heat exchanger (8) is connected in series with the second pipe network (7), and the second pipe network (7) is composed of a second water supply pipe (701) and a second water return pipe (702) which are connected in series;

the lift detection module (3) comprises a second pressure sensor (301) and a third pressure sensor (302) which are arranged on the second water return pipe (702), wherein the third pressure sensor (302) is used for detecting the water return pressure of a user side;

the self-optimizing response module (4) comprises a heat supply circulating pump (403) connected in series to the second water return pipe (702), the heat supply circulating pump (403) is connected with a frequency converter (16), the installation position of the heat supply circulating pump (403) is between the second pressure sensor (301) and the third pressure sensor (302), the frequency converter (16) is used for controlling the heat supply circulating pump (403) to carry out heat transfer on a user side, and the second pressure sensor (301) is used for detecting the outlet pressure of the heat supply circulating pump (403);

and a controller (14), wherein a signal receiving end of the controller is electrically connected with the second pressure sensor (301) and the third pressure sensor (302) through a TPC intelligent collector (13), and is also electrically connected with the frequency converter (16), and the lift detection module (3) and the frequency converter (16) measure a heat supply lift parameter of a user side and a power parameter of the heat supply circulating pump (403) so that the heat supply circulating pump (403) can carry out frequency adjustment.

2. The intelligent optimizing system of a heat supply circulating pump according to claim 1, wherein the second pipe network (7) is communicated with a heat source (10), the first pipe network (6) is communicated with a courtyard (5), and the first pipe network (6) is connected in series with a heat conducting end of the plate heat exchanger (8), and is composed of a first water supply pipe (601) and a first water return pipe (602) which are connected in series.

3. The intelligent optimizing system of the heat supply circulating pump according to claim 2, wherein a heat adjusting mechanism (2) integrated with a heat detecting module is further arranged inside the heating power station (1);

the heat regulating mechanism (2) comprises a second temperature sensor (202) and a flowmeter (203) which are arranged on the first water supply pipe (601), and further comprises a third temperature sensor (201) and a regulating valve (204) which are arranged on the first water return pipe (602).

4. A heat supply circulating pump intelligent optimizing system according to claim 3, wherein the signal receiving end of the controller (14) is further electrically connected to a second temperature sensor (202) and a third temperature sensor (201) through the TPC intelligent collector (13), and the signal output end thereof is electrically connected to the regulating valve (204).

5. The intelligent optimizing system of the heat supply circulating pump according to claim 2, wherein a network well chamber (11) is additionally arranged on the first pipe network (6), a plurality of thermodynamic cells (12) are connected to the second pipe network (7) in parallel, and safety early warning modules (9) are arranged in the network well chamber (11) and the thermodynamic cells (12).

6. The intelligent optimizing system for a heat supply circulating pump according to claim 5, wherein, taking installation of the safety pre-warning module (9) in the network well chamber (11) as an example, the system comprises a displacement sensor (901), a first temperature sensor (902) and a first pressure sensor (903) which are arranged in the network well chamber (11) and used for detecting a well lid position state, and all the three are electrically connected with a signal receiving end of the controller (14) through the TPC intelligent collector (13).

7. The intelligent optimizing system of a heat supply circulating pump according to claim 1, wherein the self-optimizing response module (4) further comprises a water supplementing variable frequency pump (401), a pressurizing water supplementing structure at a user side is formed by the water supplementing pipe (703) and a water tank (15), a water outlet end of the water tank (15) is connected with one end of the water supplementing pipe (703) connected with the water supplementing variable frequency pump (401) in series, and the other end of the water supplementing pipe (703) is connected with the second water return pipe (702).

8. The intelligent optimizing system of a heat supply circulating pump according to claim 7, wherein the self-optimizing response module (4) further comprises a pressure release valve (402) and a water discharge pipe (704) forming a pressure release drainage structure at the user side, the pressure release valve (402) is connected in series with the water discharge pipe (704), and the water discharge pipe (704) is connected with the second water return pipe (702).

9. The intelligent optimizing system for heat supply circulating pump according to claim 8, wherein the signal output end of the controller (14) is electrically connected to the water replenishing variable frequency pump (401) and the pressure release valve (402).