CN104864439A - Temperature reducing combined type full-automatic variable frequency heat exchange unit - Google Patents
Temperature reducing combined type full-automatic variable frequency heat exchange unit Download PDFInfo
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- CN104864439A CN104864439A CN201410688770.XA CN201410688770A CN104864439A CN 104864439 A CN104864439 A CN 104864439A CN 201410688770 A CN201410688770 A CN 201410688770A CN 104864439 A CN104864439 A CN 104864439A
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Abstract
The invention discloses a temperature reducing combined type full-automatic variable frequency heat exchange unit. The heat exchange unit mainly comprises a shell-and-tube heat exchanger, a plate heat exchanger, a circulating pump, a water supplementing pump and a control cabinet, wherein a primary outlet of the shell-and-tube heat exchanger is connected with a series connection pipe to be connected with a primary inlet of the plate heat exchanger; an electromagnetic cut-off valve is mounted on the series connection pipe; the circulating pump is mounted on a secondary water return pipe of the plate heat exchanger; the secondary water return pipe is further connected with a temperature reducing circulating pipe, behind the circulating pump, to be connected with a secondary water supply pipe of the plate heat exchanger; a secondary outlet of the shell-and-tube heat exchanger is connected with a temperature reducing water supply pipe to be connected with a secondary water supply pipe of the plate heat exchanger; the secondary water supply pipe is equipped with a flow regulating valve before connected to the temperature reducing water supply pipe. The temperature reducing complex type full-automatic variable frequency heat exchange unit has the advantages of complete system configuration, low operating cost, energy saving, emission reduction, good intelligence and the like, and can realize unattended remote wireless monitoring and managing conveniently, thereby having very high practical value and very broad application prospects.
Description
Technical field
The present invention relates to heat-exchange unit technical field, specifically a kind of desuperheat combined type Full-automatic variable-frequency heat-exchange unit.
Background technology
Heat-exchange unit takes up an area less owing to having, use flexibly and the advantage such as effects of energy saving and emission reduction is good, at present in many residential quarters, market, hotel, school, hospital, the occasions such as factory widely use, and mainly adopt plate-type heat-exchange unit to carry out heating, but the impact of the factors such as the heat-resisting and high temperature resistant condition difference of sealing strip is subject to due to formula of the analysing heat exchanger in plate-type heat-exchange unit, under the condition using high-temperature steam, application plate-type heat-exchange unit will be restricted, usually when vapor (steam) temperature is more than more than 150 DEG C, plate-type heat-exchange unit must not be used, otherwise will safety be jeopardized.
Summary of the invention
The object of the present invention is to provide a kind of desuperheat combined type Full-automatic variable-frequency heat-exchange unit be suitable under high-temperature steam condition.
The technical solution adopted for the present invention to solve the technical problems is: desuperheat combined type Full-automatic variable-frequency heat-exchange unit is primarily of shell-and-tube heat exchanger, plate type heat exchanger, circulating pump, small pump and switch board composition, an import of shell-and-tube heat exchanger is connected with steam pipe, and steam temperature-sensing valve is housed on steam pipe, the once outlet of shell-and-tube heat exchanger is connected to serises connecting tube and is connected with an import of plate type heat exchanger, serises connecting tube is equipped with electromagnetic shut-off valve, serises connecting tube is provided with temperature sensor one after electromagnetic shut-off valve, the once outlet of plate type heat exchanger is connected with condensed water discharge pipe, condensed water discharge pipe is equipped with steam trap, the secondary import of plate type heat exchanger is connected with secondary returning water pipe and secondary water-supply pipe respectively with secondary outlet, secondary returning water pipe is equipped with filter, secondary returning water pipe is equipped with circulating pump after the filters, secondary returning water pipe is before circulating pump, pressure sensor one is provided with after filter, secondary returning water pipe is before circulating pump, also filling pipe and relief tube is connected to respectively after filter, and on filling pipe, small pump is housed, relief tube is equipped with pressure release electromagnetic valve, secondary returning water pipe is provided with pressure sensor two after circulating pump, secondary returning water pipe is also connected to desuperheat circulation pipe and is connected with the secondary import of described shell-and-tube heat exchanger after circulating pump, the secondary outlet of shell-and-tube heat exchanger is connected to desuperheat feed pipe and is connected with described secondary water-supply pipe, secondary water-supply pipe was also equipped with flow control valve before access desuperheat feed pipe, secondary water-supply pipe was provided with temperature sensor three before flow control valve, secondary water-supply pipe is provided with pressure sensor three and temperature sensor two after access desuperheat feed pipe.Described circulating pump, small pump, steam temperature-sensing valve, temperature sensor one, electromagnetic shut-off valve, pressure release electromagnetic valve, pressure sensor one, pressure sensor two, pressure sensor three, temperature sensor two, flow control valve are connected with switch board wiring respectively with temperature sensor three, switch board is also connected with the outdoor temperature sensor for detecting outdoor environment temperature disposed in the outdoor, GPRS transceiver module is also equiped with in switch board, described GPRS transceiver module mainly carries out real-time radio transmission and reception to relevant data signal, is convenient to realize wireless remote monitering.
Operation principle of the present invention is, first shell-and-tube heat exchanger carries out heat exchange desuperheat to the steam source that steam pipe is carried, plate type heat exchanger is accessed again by serises connecting tube, simultaneously a part of flow of secondary returning water pipe after circulating pump pressurization enters shell-and-tube heat exchanger by desuperheat circulation pipe and heats, and then import secondary water-supply pipe by desuperheat feed pipe, the outdoor environment temperature detected according to outdoor temperature sensor is provided secondary water-supply pipe water outlet temperature setting value by switch board system adaptively, then the secondary water-supply pipe water outlet temperature setting value provided according to system relative to temperature sensor two by steam temperature-sensing valve regulates its aperture automatically, the temperature sensor two be contained on secondary water-supply pipe detects secondary water-supply pipe leaving water temperature, when the water outlet temperature setting value that secondary water-supply pipe leaving water temperature provides lower than system being detected, steam temperature-sensing valve will tune up its aperture, steam pipe flow is increased, secondary water-supply pipe leaving water temperature increases, otherwise, then turn steam temperature-sensing valve aperture down and reduce steam pipe flow, secondary water-supply pipe leaving water temperature reduces, simultaneously, temperature sensor three detects the secondary leaving water temperature of plate type heat exchanger, be contained in flow control valve on secondary water-supply pipe for regulating the secondary water flow of plate type heat exchanger, and the secondary water-supply pipe water outlet temperature setting value that flow control valve can provide according to system relative to temperature sensor three regulates its pass degree adaptively, when the water outlet temperature setting value that the secondary leaving water temperature of plate type heat exchanger provides lower than system being detected, flow control valve turns down its aperture, to reduce the secondary water flow of plate type heat exchanger, the secondary leaving water temperature of plate type heat exchanger will increase, otherwise, flow control valve will leave the secondary water flow of large plate type heat exchanger, the secondary leaving water temperature of plate type heat exchanger will reduce, so repeatedly regulate, in the water outlet temperature setting value that the system of maintaining is provided by secondary water-supply pipe leaving water temperature under the dual regulation and control of steam temperature-sensing valve and flow control valve, realize the present invention energy-conservation, comfortable heating effect, temperature sensor one detection be contained on serises connecting tube enters the heat source temperature of plate type heat exchanger, when maximum temperature values higher than systemic presupposition of heat source temperature that serises connecting tube enters plate type heat exchanger being detected, electromagnetic shut-off valve is closed immediately and is cut off plate type heat exchanger thermal source, thus protection plate type heat exchanger is not damaged, guarantee safety and avoid high temperature to threaten, meanwhile, the circulating pump be contained on secondary returning water pipe carries out frequency-changing pressure stabilizing operation relative to pressure sensor two according to the water outlet constant voltage value of systemic presupposition, described pressure sensor two is for detecting the discharge pressure of circulating pump, when the water outlet constant voltage value of the discharge pressure of circulating pump lower than systemic presupposition being detected, circulating pump will improve rotating speed to increase circular flow, the discharge pressure of circulating pump will increase, otherwise reduce circulating pump rotating speed to reduce circular flow, the discharge pressure of circulating pump will decline, adjustment like this, the water outlet constant voltage value that the discharge pressure realizing circulating pump of the present invention maintains systemic presupposition is run, reach energy-conservation, safety and be conducive to impelling the effects such as flow control valve Automatic adjusument, simultaneously, the pressure sensor one be contained on secondary returning water pipe detects circulating pump intake pressure, when the pressure of return water steady state value of circulating pump intake pressure lower than systemic presupposition being detected, small pump will automatically start and carry out frequency-changing pressure stabilizing moisturizing relative to pressure sensor one according to the pressure of return water steady state value of systemic presupposition, voltage stabilizing, be stabilized on the pressure of return water steady state value of systemic presupposition to make circulating pump intake pressure, when detecting that circulating pump intake pressure is stabilized in the pressure of return water steady state value of systemic presupposition, and when maintaining 30s ~ 60s, small pump is by shutdown and enter dormancy holding state, so repeatedly, realize voltage stabilizing of the present invention, level pressure and termination of pumping energy-saving effect, when the pressure of return water steady state value of circulating pump intake pressure higher than systemic presupposition being detected, and reach systemic presupposition super-pressure force value and above time, pressure release electromagnetic valve will open sluicing automatically, pressure release, until when circulating pump intake pressure falls back to the pressure of return water steady state value of systemic presupposition, pressure release electromagnetic valve will be closed automatically, when the anhydrous force value of circulating pump intake pressure lower than systemic presupposition being detected, circulating pump is by stoppage protection, when circulating pump intake pressure recovers, and detect circulating pump intake pressure systemic presupposition pressure of return water steady state value and above time, circulating pump automatically starts and reverts to normal operating condition.
Described switch board is according to described outdoor temperature sensor, temperature sensor one, temperature sensor two, temperature sensor three, pressure sensor one, each related temperature signals that pressure sensor two and pressure sensor three detect, pressure signal, to circulating pump, small pump, steam temperature-sensing valve, electromagnetic shut-off valve, pressure release electromagnetic valve and flow control valve carry out Automatic Control and protection respectively, switch board also receives and sends relevant wireless data signal by GPRS transceiver module in GPRS mode simultaneously, realize the unattended remote wireless monitoring of the present invention and management.
The invention has the beneficial effects as follows, it is complete that the present invention has system configuration, and operating cost is low, and energy-saving and emission-reduction, the intelligent advantage such as good, can also conveniently realize unattended remote wireless monitoring and management simultaneously, thus there is good practical value and application prospect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, shell-and-tube heat exchanger, 2, plate type heat exchanger, 3, circulating pump, 4, small pump, 5, switch board, 6, GPRS transceiver module, 7, outdoor temperature sensor, 8, steam pipe, 9, steam temperature-sensing valve, 10, desuperheat feed pipe, 11, temperature sensor one, 12, electromagnetic shut-off valve, 13, serises connecting tube, 14, condensed water discharge pipe, 15, steam trap, 16, secondary returning water pipe, 17, filter, 18, relief tube, 19, pressure release electromagnetic valve, 20, pressure sensor one, 21, pressure sensor two, 22, filling pipe, 23, secondary water-supply pipe, 24, pressure sensor three, 25, temperature sensor two, 26, flow control valve, 27, temperature sensor three, 28, desuperheat circulation pipe.
Detailed description of the invention
With regard to accompanying drawing 1, one heating heat-exchange unit of the present invention is described in detail below below.
As shown in Figure 1, one heating heat-exchange unit of the present invention is primarily of shell-and-tube heat exchanger 1, plate type heat exchanger 2, circulating pump 3, small pump 4 and switch board 5 form, an import of shell-and-tube heat exchanger 1 is connected with steam pipe 8, and on steam pipe 8, steam temperature-sensing valve 9 is housed, the once outlet of shell-and-tube heat exchanger 1 is connected to serises connecting tube 13 and is connected with an import of plate type heat exchanger 2, serises connecting tube 13 is equipped with electromagnetic shut-off valve 12, serises connecting tube 13 is provided with temperature sensor 1 after electromagnetic shut-off valve 12, the once outlet of plate type heat exchanger 2 is connected with condensed water discharge pipe 14, condensed water discharge pipe 14 is equipped with steam trap 15, the secondary import of plate type heat exchanger 2 is connected with secondary returning water pipe 16 and secondary water-supply pipe 23 respectively with secondary outlet, secondary returning water pipe 16 is equipped with filter 17, secondary returning water pipe 16 is equipped with circulating pump 3 after filter 17, secondary returning water pipe 16 is before circulating pump 3, pressure sensor 1 is provided with after filter 17, secondary returning water pipe 16 is before circulating pump 3, filling pipe 22 and relief tube 18 is also connected to respectively after filter 17, and on filling pipe 22, small pump 4 is housed, relief tube 18 is equipped with pressure release electromagnetic valve 19, secondary returning water pipe 16 is provided with pressure sensor 2 21 after circulating pump 3, secondary returning water pipe 16 is also connected to desuperheat circulation pipe 28 and is connected with the secondary import of described shell-and-tube heat exchanger 1 after circulating pump 3, the secondary outlet of shell-and-tube heat exchanger 1 is connected to desuperheat feed pipe 10 and is connected with described secondary water-supply pipe 23, secondary water-supply pipe 23 was also equipped with flow control valve 26 before access desuperheat feed pipe 10, secondary water-supply pipe 23 was provided with temperature sensor 3 27 before flow control valve 26, secondary water-supply pipe 23 is provided with pressure sensor 3 24 and temperature sensor 2 25 after access desuperheat feed pipe 10.Described circulating pump 3, small pump 4, steam temperature-sensing valve 9, temperature sensor 1, electromagnetic shut-off valve 12, pressure release electromagnetic valve 19, pressure sensor 1, pressure sensor 2 21, pressure sensor 3 24, temperature sensor 2 25, flow control valve 26 and temperature sensor 3 27 are connected with switch board 5 wiring respectively, switch board 5 is also connected with the outdoor temperature sensor 7 for detecting outdoor environment temperature disposed in the outdoor, GPRS transceiver module 6 is also equiped with in switch board 5, described GPRS transceiver module 6 mainly carries out real-time radio transmission and reception to relevant data signal, be convenient to realize wireless remote monitering.
Operation principle of the present invention is, first the steam source that shell-and-tube heat exchanger 1 pair of steam pipe 8 is carried carries out heat exchange desuperheat, plate type heat exchanger 2 is accessed again by serises connecting tube 13, simultaneously a part of flow of secondary returning water pipe 16 after circulating pump 3 pressurizes enters shell-and-tube heat exchanger 1 by desuperheat circulation pipe 28 and heats, and then import secondary water-supply pipe 23 by desuperheat feed pipe 10, the outdoor environment temperature detected according to outdoor temperature sensor 7 is provided secondary water-supply pipe 23 water outlet temperature setting value by switch board 5 system adaptively, then the secondary water-supply pipe 23 water outlet temperature setting value provided according to system relative to temperature sensor 2 24 by steam temperature-sensing valve 9 regulates its aperture automatically, the temperature sensor 2 24 be contained on secondary water-supply pipe 23 detects secondary water-supply pipe 23 leaving water temperature, when the water outlet temperature setting value that secondary water-supply pipe 23 leaving water temperature provides lower than system being detected, steam temperature-sensing valve 9 will tune up its aperture, steam pipe 8 flow is increased, secondary water-supply pipe 23 leaving water temperature increases, otherwise, then turn steam temperature-sensing valve 9 aperture down and reduce steam pipe 8 flow, secondary water-supply pipe 23 leaving water temperature reduces, simultaneously, temperature sensor 3 27 detects the secondary leaving water temperature of plate type heat exchanger 2, be contained in flow control valve 26 on secondary water-supply pipe 23 for regulating the secondary water flow of plate type heat exchanger 2, and the secondary water-supply pipe 23 water outlet temperature setting value that flow control valve 26 can provide according to system relative to temperature sensor 3 27 regulates its pass degree adaptively, when the water outlet temperature setting value that the secondary leaving water temperature of plate type heat exchanger 2 provides lower than system being detected, flow control valve 26 turns down its aperture, to reduce the secondary water flow of plate type heat exchanger 2, the secondary leaving water temperature of plate type heat exchanger 2 will increase, otherwise, flow control valve 26 will leave the secondary water flow of large plate type heat exchanger 2, the secondary leaving water temperature of plate type heat exchanger 2 will reduce, so repeatedly regulate, in the water outlet temperature setting value that the system of maintaining is provided by secondary water-supply pipe 23 leaving water temperature under the dual regulation and control of steam temperature-sensing valve 9 and flow control valve 26, realize the present invention energy-conservation, comfortable heating effect, the temperature sensor 1 be contained on serises connecting tube 13 detects the heat source temperature entering plate type heat exchanger 2, when maximum temperature values higher than systemic presupposition of heat source temperature that serises connecting tube 13 enters plate type heat exchanger 2 being detected, plate type heat exchanger 2 thermal source is closed and cut off to electromagnetic shut-off valve 12 immediately, thus protection plate type heat exchanger 2 is not damaged, guarantee safety and avoid high temperature to threaten, meanwhile, the circulating pump 3 be contained on secondary returning water pipe 16 carries out frequency-changing pressure stabilizing operation relative to pressure sensor 2 21 according to the water outlet constant voltage value of systemic presupposition, described pressure sensor 2 21 is for detecting the discharge pressure of circulating pump 3, when the water outlet constant voltage value of the discharge pressure of circulating pump 3 lower than systemic presupposition being detected, circulating pump 3 will improve rotating speed to increase circular flow, the discharge pressure of circulating pump 3 will increase, otherwise reduce circulating pump 3 rotating speed to reduce circular flow, the discharge pressure of circulating pump 3 will decline, adjustment like this, the water outlet constant voltage value that the discharge pressure realizing circulating pump 3 of the present invention maintains systemic presupposition is run, reach energy-conservation, safety and be conducive to impelling the effects such as flow control valve 26 Automatic adjusument, simultaneously, the pressure sensor 1 be contained on secondary returning water pipe 16 detects circulating pump 3 intake pressure, when the pressure of return water steady state value of circulating pump 3 intake pressure lower than systemic presupposition being detected, small pump 4 will automatically start and carry out frequency-changing pressure stabilizing moisturizing relative to the pressure of return water steady state value of pressure sensor 1 foundation systemic presupposition, voltage stabilizing, be stabilized on the pressure of return water steady state value of systemic presupposition to make circulating pump 3 intake pressure, when detecting that circulating pump 3 intake pressure is stabilized in the pressure of return water steady state value of systemic presupposition, and when maintaining 30s ~ 60s, small pump 4 is by shutdown and enter dormancy holding state, so repeatedly, realize voltage stabilizing of the present invention, level pressure and termination of pumping energy-saving effect, when the pressure of return water steady state value of circulating pump 3 intake pressure higher than systemic presupposition being detected, and reach systemic presupposition super-pressure force value and above time, pressure release electromagnetic valve 19 will open sluicing automatically, pressure release, until when circulating pump 3 intake pressure falls back to the pressure of return water steady state value of systemic presupposition, pressure release electromagnetic valve 19 will be closed automatically, when the anhydrous force value of circulating pump 3 intake pressure lower than systemic presupposition being detected, circulating pump 3 is by stoppage protection, when circulating pump 3 intake pressure recovers, and detect circulating pump 3 intake pressure systemic presupposition pressure of return water steady state value and above time, circulating pump 3 automatically starts and reverts to normal operating condition.
Described switch board 5 is according to described outdoor temperature sensor 7, temperature sensor 1, temperature sensor 2 25, temperature sensor 3 27, pressure sensor 1, each related temperature signals that pressure sensor 2 21 and pressure sensor 3 24 detect, pressure signal, to circulating pump 3, small pump 4, steam temperature-sensing valve 9, electromagnetic shut-off valve 12, pressure release electromagnetic valve 19 and flow control valve 26 carry out Automatic Control and protection respectively, switch board 5 also receives and sends relevant wireless data signal by GPRS transceiver module 6 in GPRS mode simultaneously, realize the unattended remote wireless monitoring of the present invention and management.
Claims (3)
1. a desuperheat combined type Full-automatic variable-frequency heat-exchange unit is primarily of shell-and-tube heat exchanger, plate type heat exchanger, circulating pump, small pump and switch board composition, an import of shell-and-tube heat exchanger is connected with steam pipe, steam pipe is equipped with steam temperature-sensing valve, the secondary import of plate type heat exchanger is connected with secondary returning water pipe and secondary water-supply pipe respectively with secondary outlet, secondary returning water pipe is equipped with filter, secondary returning water pipe is equipped with circulating pump after the filters, secondary returning water pipe is before circulating pump, pressure sensor one is provided with after filter, it is characterized in that, the once outlet of shell-and-tube heat exchanger is connected to serises connecting tube and is connected with an import of plate type heat exchanger, serises connecting tube is equipped with electromagnetic shut-off valve, serises connecting tube is provided with temperature sensor one after electromagnetic shut-off valve, secondary returning water pipe is provided with pressure sensor two after circulating pump, secondary returning water pipe is also connected to desuperheat circulation pipe and is connected with the secondary import of described shell-and-tube heat exchanger after circulating pump, the secondary outlet of shell-and-tube heat exchanger is connected to desuperheat feed pipe and is connected with described secondary water-supply pipe, secondary water-supply pipe was also equipped with flow control valve before access desuperheat feed pipe, secondary water-supply pipe was provided with temperature sensor three before flow control valve, secondary water-supply pipe is provided with pressure sensor three and temperature sensor two after access desuperheat feed pipe, described switch board is also connected with the outdoor temperature sensor for detecting outdoor environment temperature disposed in the outdoor.
2. desuperheat combined type Full-automatic variable-frequency heat-exchange unit according to claim 1, it is characterized in that, secondary returning water pipe is also connected to filling pipe and relief tube respectively before circulating pump, after filter, and on filling pipe, small pump is housed, and relief tube is equipped with pressure release electromagnetic valve.
3. desuperheat combined type Full-automatic variable-frequency heat-exchange unit according to claim 1, is characterized in that, in switch board, be also equiped with GPRS transceiver module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410688770.XA CN104864439A (en) | 2014-11-26 | 2014-11-26 | Temperature reducing combined type full-automatic variable frequency heat exchange unit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410688770.XA CN104864439A (en) | 2014-11-26 | 2014-11-26 | Temperature reducing combined type full-automatic variable frequency heat exchange unit |
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| CN104864439A true CN104864439A (en) | 2015-08-26 |
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| CN201410688770.XA Pending CN104864439A (en) | 2014-11-26 | 2014-11-26 | Temperature reducing combined type full-automatic variable frequency heat exchange unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587684A (en) * | 2021-06-18 | 2021-11-02 | 洛阳双瑞精铸钛业有限公司 | Heat exchange system with intelligent safety control function |
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2014
- 2014-11-26 CN CN201410688770.XA patent/CN104864439A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587684A (en) * | 2021-06-18 | 2021-11-02 | 洛阳双瑞精铸钛业有限公司 | Heat exchange system with intelligent safety control function |
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Application publication date: 20150826 |
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