CN2649993Y

CN2649993Y - Intelligent heat exchanger unit

Info

Publication number: CN2649993Y
Application number: CN 03253235
Authority: CN
Inventors: 丁显政; 王全利; 邱金峰; 李东涛
Original assignee: QINGDAO DONGHUA EQUIPMENT Manufacturing
Current assignee: QINGDAO DONGHUA EQUIPMENT Manufacturing
Priority date: 2003-09-02
Filing date: 2003-09-02
Publication date: 2004-10-20
Anticipated expiration: 2013-09-02

Abstract

The utility model discloses an intelligent heat exchange unit, which comprises a pressure transmitter and a temperature transmitter which are respectively arranged on the admission pipe and the water outlet pipe for heating body and heated body to take in and out of the heat exchanger; the control circuit of the electro-hydraulic regulating valve on the admission pipe of the pressure/temperature transmitters and the heating body is connected with the intelligent controller connected with the control circuit of the circulating pump and the constant pressure make-up pump arranged on the water inlet pipe of the heated body; an outdoor temperature sensor is connected with the intelligent controller. The intelligent heat exchange unit performs the intelligent processing and instantaneous feedback according to the outdoor temperature data collected by the outdoor temperature sensor and heating temperature, thereby, realizing the dynamically controlling over quantitative and qualitative regulation to preset heating temperature value, controlling the pressure and temperature on the water outlet pipe of the heated body and determine the make-up water according to the preset and actual pressure values. The utility model can control the whole heat exchange unit to operate in a safe, reliable, energy-saving and highly-efficient way.

Description

A kind of intelligent heat-exchange unit

Technical field

The utility model belongs to the heat exchange unit, the specifically a kind of intelligent heat-exchange unit that can control the instantaneous heat supply temperature of heating network automatically.

Background technology

In the existing heat supply process, heating plant makes heat carrier and water carry out heat exchange by heat exchanger, the heat of heat carrier is conducted to being heated water, water after will being heated is again supplied with user's heating, no matter it is much that the temperature difference of indoor and outdoor has, the temperature that is heated water that same heating plant provides is a setting value, change this setting value and need use manual adjustment, but manual adjustment can only be the supply of heat carrier, and be to lag behind to regulate, be every adjusting once, need through thermometric after the heat exchange, regulate again, the thermometric after from the supply of regulating heat carrier to heat exchange, its feedback is come need be for a long time, the temperature that feedback is come can not reflect instantaneous heat supply situation in the heating network, can't be according to the dynamic control heat supply of heat supply curve and outdoor temperature realization set temperature value.

The utility model content

For solving heating network according to outdoor temperature and heat supply curve, realize the dynamic heat supply problem of set temperature value, the technical solution of the utility model is: enter into and out of the calandria of heat exchanger at calandria on the pipeline of the pipeline of pipe and calandria outlet pipe, be separately installed with pressure transmitter and temperature transmitter, the control circuit of pressure transmitter and temperature transmitter links to each other with intelligent controller, and the control circuit that calandria enters the electric hydaulic control valve on the pipeline of pipe is connected with intelligent controller; On the pipeline of the pipeline of the heated object water inlet pipe of heat exchanger and heated object outlet pipe, pressure transmitter and temperature transmitter are installed also at heated object, the control circuit of its pressure transmitter and temperature transmitter links to each other with intelligent controller; Be installed in the circulating pump on the pipeline of heated object water inlet pipe and the control circuit of balance pressure water compensating pump and also link to each other with intelligent controller, outdoor temperature sensor is connected on the intelligent controller.

The utility model also has following feature:

Described heat exchanger is divided into two groups, and stack serial connection is up and down arranged;

Described heat exchanger is a waved tube heat exchanger;

Intelligent controller carries out communication with the host computer that can realize the operation of remote monitoring heat exchange station and is connected.

Owing to advance at calandria, the calandria that goes out heat exchanger enters on the pipeline of pipe and outlet pipe, on the pipeline of heated object water inlet pipe and outlet pipe, be separately installed with the pressure transmitter and the temperature transmitter that link to each other with intelligent controller, be installed in the circulating pump on the inlet pipeline of heated object and the control circuit of balance pressure water compensating pump, calandria enters electric hydaulic control valve and the outdoor temperature sensor on the pipeline, all be connected on the intelligent controller, intelligent controller can be according to the outdoor temperature data of outdoor temperature sensor collection, and the heat supply temperature that calandria provided carries out Intelligent treatment, thereby determine dynamic pressure, the set-point of temperature, give the electric hydaulic control valve with the information instantaneous feedback after its processing, regulate the aperture of electric hydaulic control valve, make the supply water temperature of supplying with user's heat reach desired value, satisfy the heat supply requirement, realize setting the adjusting that the heat supply temperature value is dynamically controlled " amount "; Intelligent controller needs only the temperature value of importing required translation in its operation interface appointed positions, can revise the heat supply curve, realizes the heat supply temperature value is dynamically controlled the adjusting of " matter "; Information after intelligent controller is handled it feeds back to pressure transmitter and the temperature transmitter on the heated object outlet pipeline again, and it is carried out the target control of its pressure and temperature; Intelligent controller can also be determined the rate of water make-up of small pump according to the setting value and the actual value of pressure, and then makes the ductwork pressure value constant; By dynamic control to the pressure and temperature of calandria and heated object, and the heat supply temperature value dynamically controlled, and as required, to the adjusting respectively of calandria amount of carrying out and matter or regulate simultaneously, both satisfy customer requirements, avoided the waste of electric energy and heat energy again;

Heat exchanger is divided into two groups of serial connections that superpose up and down arranges, can make and fully carry out heat exchange between heated object and the calandria, and can save take up space;

Adopt described waved tube heat exchanger, can make cold and hot medium inside and outside bellows tube, in the process of flowing, produce during through its crest and spray effect, produce throttle effect during through node, thereby broken the boundary layer between flow media and tube wall, can improve heat transfer efficiency.

Intelligent controller and host computer are carried out communication realization remote transmission function, can realize the network monitoring of heating system.

Because intelligent controller is controlled the operation of whole heat exchange unit, thereby can make heat distribution pipe network control heat supply automatically, make unit safety, reliable, efficient operation, energy savings realizes unmanned.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the scheme of installation to the utility model heat exchange unit;

Fig. 2 is the left view of Fig. 1;

Fig. 3 by in the heat exchanger among Fig. 1 the outline drawing of employing bellows tube;

Fig. 4 is the utility model control circuit schematic diagram.

The specific embodiment

Among Fig. 1, calandria enters pipe 1 and links to each other with calandria pipeline in the heat exchanger 3, and the calandria pipeline in the heat exchanger 4 links to each other with calandria pipeline in the heat exchanger 3, and calandria outlet pipe 6 and heat exchanger 4 interior pipelines export and are connected; The water inlet pipe 5 of heated object enters heat exchanger 4 through circulating pump 8, small pump 9 (referring to Fig. 2) enters heat exchanger 3 by heat exchanger 4 again, behind the heat of heated object through twice absorption calandria, discharge the hot user of supply heating from the outlet pipe 2 of heated object, heat exchanger 3 and 4 is arranged with stack serial connection up and down, can carry out heat exchange twice, and make full use of shared locus; Calandria enters pipe 1 top from heat exchanger 3 and enters, and heated object water inlet pipe 5 enters from the bottom of heat exchanger 4, makes the pure reverse flow of cold and hot medium; Heat exchanger 3 and heat exchanger 4 adopt waved tube heat exchanger (referring to Fig. 3), can make cold and hot medium in the inside and outside process of flowing of bellows tube, produce during through its crest 12 and spray effect, produce throttle effect during through node 13, thereby broken the boundary layer between flow media and tube wall, improved the heat exchange efficiency of heat transfer coefficient and unit heat exchange area.

Above-mentioned heat exchange unit can be realized the heat exchange of steam and water, and steam is calandria, and water is heated object, also can be the heat exchange of water and water, and calandria and heated object are water.

When Fig. 3 carries out heat exchange for steam and water or water and water, intelligent controller SAPHIR controls the conspectus of heat exchange unit operation automatically, at net once is advancing of vapour and water or water and hydrothermal exchange, go out heat exchanger 3,4 calandria enters on the pipeline of pipe 1 and calandria outlet pipe 6, be separately installed with pressure transmitter PT1-1, PT1-2 and temperature transmitter TE1-1, TE1-2, pressure transmitter PT1-1, PT1-2 and temperature transmitter TE1-1, the control circuit of TE1-2 links to each other with intelligent controller SAPHIR, and the control circuit that intelligent controller SAPHIR and calandria enter the electric hydaulic control valve F1 on the pipeline of pipe 1 is connected;

At the secondary net is that the water inlet pipe 5 and the heated object outlet pipe 2 of heated object advances, go out on the pipeline of heat exchanger, pressure transmitter PT2-1 also is installed, PT2-2 and temperature transmitter TE2-1, TE2-2, its pressure transmitter PT2-1, PT2-2 and temperature transmitter TE2-1, the control circuit of TE2-2 all links to each other with intelligent controller SAPHIR, be installed in the circulating pump D1 on heated object water inlet pipe 5 pipelines, control circuit and the motor-operated control valve F2 of D2 and balance pressure water compensating pump D3 also link to each other with intelligent controller SAPHIR, and outdoor temperature sensor TW is connected on the intelligent controller SAPHIR.

For using electricity wisely, on the control circuit of circulating pump D1, D2 and balance pressure water compensating pump D3, the frequency converter 11 of adjustable water saving revolution speed can be installed also.

Intelligent controller SAPHIR is carried out communication with host computer 10 be connected, can realize the operation of remote monitoring heat exchange station.

Claims

1, a kind of intelligent heat-exchange unit, comprise that heat exchanger, circulating pump and small pump, intelligent controller, calandria are into and out of the pipe of heat exchanger, the pipe of heated object turnover heat exchanger, it is characterized in that: enter into and out of the calandria of heat exchanger at calandria on the pipeline of the pipeline of pipe and calandria outlet pipe, be separately installed with pressure transmitter and temperature transmitter, the control circuit of pressure transmitter and temperature transmitter links to each other with intelligent controller, and the control circuit that calandria enters the electric hydaulic control valve on the pipeline of pipe is connected with intelligent controller; On the pipeline of the pipeline of the heated object water inlet pipe of heat exchanger and heated object outlet pipe, pressure transmitter and temperature transmitter are installed also at heated object, the control circuit of its pressure transmitter and temperature transmitter links to each other with intelligent controller; Be installed in the circulating pump on the pipeline of heated object water inlet pipe and the control circuit of balance pressure water compensating pump and also link to each other with intelligent controller, outdoor temperature sensor is connected on the intelligent controller.

2, a kind of intelligent heat-exchange unit as claimed in claim 1, it is characterized in that: described heat exchanger is divided into two groups, and stack serial connection is up and down arranged.

3, a kind of intelligent heat-exchange unit as claimed in claim 2, it is characterized in that: described heat exchanger is a waved tube heat exchanger.

4, a kind of intelligent heat-exchange unit as claimed in claim 1 is characterized in that: the frequency converter that adjustable water saving revolution speed is installed on the control circuit of circulating pump and balance pressure water compensating pump.

5, as claim 1 or 2 or 3 or 4 described a kind of intelligent heat-exchange units, it is characterized in that: intelligent controller carries out communication with host computer and is connected.