CN201772560U

CN201772560U - Intelligent jet-type heat exchange machine set

Info

Publication number: CN201772560U
Application number: CN2010202404990U
Authority: CN
Inventors: 魏辅坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-29
Filing date: 2010-06-29
Publication date: 2011-03-23
Anticipated expiration: 2020-06-29

Abstract

The utility model discloses an intelligent jet-type heat exchange machine set which is mainly formed by connection of a hydraulic injector, a variable-frequency automatic controller and various solenoid valves with a water pump; the intelligent jet-type heat exchange machine set has more novel structure, more perfect functions and more obvious energy-saving effect, is more reliable in operation, more flexible in installation and more convenient for maintenance, can realize PLC (Programmable Logic Controller) program control and multi-station centralized monitoring, saves a large amount of expense, improves the automation degree, can enlarge the heating area by more than three times, can reduce the energy consumption by more than 80 percent compared with that of a plate-type heat exchanger and other isolation-type heat exchangers under the same condition, can achieve the cooling and heat-exchange effect, and has the power lower by 3 times compared with that of a circulating pump configured for a plate-type heat exchange machine set.

Description

Intelligent injecting type heat exchange unit

Technical field

The utility model relates to heating installation, belongs to the improvement of heat exchange set structure, particularly intelligent injecting type heat exchange unit.

Background technology

" heating heat-exchange injecting type heat exchange unit ", its pressure reduction is a variable element, learn that by practice the pressure reduction of any heating system is not unalterable, pressure reduction is along with system and equipment is constantly aging, continuing to increase of heating area and changing, so it is constant that pressure reduction also just is difficult to guarantee, even if newly-built boiler room and heating system, the pressure reduction of design adapts to the injector requirement then, but will change the coming year, thereby bring fatal influence for the operate as normal of injector.

The utility model content

The purpose of this utility model is to provide a kind of intelligent injecting type heat exchange unit, topology update grain husk, more perfect functions, energy-conservation more remarkable, operation is more reliable, it is more flexible to install, keep in repair more convenient, can realize the PLC programme-control, the monitoring of multistation Centralized Monitoring, saved a large amount of spendings, improved automaticity, can improve heating area more than 3 times, under square one, its energy consumption is compared with plate type heat exchanger or other isolated heat exchanger and can be reduced more than 80%, can reach the cooling heat exchange again, and the change planes power of circulating pump of configuration set of power ratio plate is little 3 times.

The purpose of this utility model is achieved in that a kind of intelligent injecting type heat exchange unit, comprise hydraulic ejector and frequency conversion automatic controller, one time the heating pipe network water side is communicated with water inlet pipe, water inlet pipe is communicated with hydraulic ejector, the delivery port of hydraulic ejector connects secondary heating pipe network water inlet port, and secondary heating pipe network water outlet port connects a heating pipe network water inlet end by return pipe; The elementary mixing guiding tube of hydraulic ejector is made of single horn-like awl tube and preceding cylindrical drum, the portlet of this horn-like awl tube is connected with preceding cylindrical drum front end nozzle, and chew in the face of matching with the injection in the hydraulic ejector, its big opening end edge seals affixed with the internal perisporium of hydraulic ejector mutually, horn-like awl tube inwall and hydraulic ejector front end internal perisporium, between chewing, injection forms elementary negative pressure drainage chamber, horn-like awl drum outer wall and preceding cylindrical drum barrel, the hydraulic ejector inwall forms secondary negative pressure drainage chamber, before forming, horn-like awl drum outer wall and preceding cylindrical drum inwall mix liquid chamber, at the hydraulic ejector rear portion that is positioned at elementary mixing guiding tube secondary mixing guiding tube is being set also, secondary mixing guiding tube is by before a pair of, horn-like awl tube in back and back cylindrical drum constitute, the rear end nozzle of horn-like awl tube big opening end and preceding cylindrical drum is in the face of matching before it, this to horn-like awl tube respectively with after cylindrical drum before, the rear end nozzle connects and composes the back and mixes liquid chamber; Water inlet pipe is communicated with bypass pipe one end, be serially connected with bypass solenoid valve on the bypass pipe, and be communicated with elementary negative pressure drainage chamber in the hydraulic ejector front end, elementary negative pressure drainage chamber and secondary negative pressure drainage chamber are interconnected by main negative pressure line and secondary negative pressure line respectively, by helping the stream pipeline to connect the water inlet of return pipe, and the delivery port place that connects return pipe by two bifurcated pipelines, on main negative pressure line and secondary negative pressure line, be serially connected with the negative pressure temperature-sensing valve respectively and help the stream temperature-sensing valve, on this two bifurcateds pipeline, be communicated with return pipe by branch road check-valves and branch road electromagnetic switch valve respectively; Help to cooperate on the stream pipeline and be serially connected with main flow aiding pump, be serially connected with main check valve at the stream that helps that is positioned at main flow aiding pump water outlet pumping hole one side on the pipeline, the middle part of the return pipe that total electromagnetic switch valve serial connection is installed in, the water outlet port of water inlet pipe is installed with temperature sensor, temperature sensor is connected with the input of frequency conversion automatic controller, the output of frequency conversion automatic controller and bypass solenoid valve, negative pressure temperature-sensing valve, helps stream temperature-sensing valve, branch road electromagnetic switch valve, total electromagnetic switch valve and branch road check-valves to be connected.

This practical dependence frequency-variable controller work principle program is as follows:

1. utilize the pressure reduction Natural Circulation:

When pressure reduction satisfies hydraulic jet device technical conditions, the unit Natural Circulation, no electrical power input, a hot water enters hydraulic ejector by water inlet pipe and sprays, mix liquid chamber before it and produce negative pressure, backwater is then by after being serially connected in the branch road check-valves and negative pressure temperature-sensing valve on the bifurcated pipeline, mix liquid chamber before being inhaled into by elementary negative pressure drainage chamber again, with once the water inlet mix, leaving water temperature is regulated automatically by the negative pressure temperature-sensing valve, water outlet is supplied water, when inlet temperature is lower than design temperature according to design temperature, the negative pressure temperature-sensing valve is not worked, and once water inlet then directly enters two net circulations.When inlet temperature was higher than design temperature, the negative pressure temperature-sensing valve was opened automatically, and the size of the opening angle of negative pressure temperature-sensing valve is then regulated automatically according to the difference of inlet temperature and design temperature, made outlet obtain constant temperature.At this moment, bypass solenoid valve, help stream temperature-sensing valve, the branch road electromagnetic switch valve that is serially connected on the bifurcated pipeline to close, pressure-reducing valve, negative pressure temperature-sensing valve, total electromagnetic switch opening of valves.

2. Based Intelligent Control operation:

Because of certain reason, pressure reduction is during less than the injector specification requirement, and automatic control system is started working.When pressure reduction less than normal value, the preceding liquid chamber that mixes can't produce negative pressure, leaving water temperature raises, when being higher than set temperature value, main flow aiding pump is opened automatically, but under the frequency conversion automatic controller of trace information, run well, backwater is injected the back mixing chamber by force, reach cooling, the purpose of heating, the duty of this moment is: the branch road check-valves and the negative pressure temperature-sensing valve that are serially connected on the bifurcated pipeline are closed automatically, backwater is through main flow aiding pump, be serially connected in and help the main check valve on the stream pipeline and help the stream temperature-sensing valve to enter the mixed liquid chamber in back, with a water hybrid cooling, because adopted the frequency conversion automatic control technology, thereby reached the constant temperature heating, whole process is all finished under the frequency conversion automatic control state.This kind duty has thoroughly solved the defective that can't work because of the little waterpower hydraulic ejector of pressure reduction.The utility model and first generation injecting type heat exchange unit are relatively, not only incorporated automatic control technology, but make unit at pressure reduction no matter equal operate as normal under the situation of size, simultaneously, on the hydraulic ejector internal structure, also done big change, as: nozzle is adjustable, i.e. the length of nozzle and diameter, can change flexibly according to the pressure-difference fluctuation scope, to improve jeting effect.Hydraulic ejector has also adopted the shell shape, and replacing for convenience detach is swift to operate simple.Area of heat-supply service is compared with the first generation, can improve heating area more than 3 times, and under square one, energy consumption is compared and can be reduced more than 80% with plate type heat exchanger (or other isolated heat exchanger).

The utility model is referred to as " RPS injecting type heat exchange unit " (being called for short RPS), through application practice in recent years, from unitary construction, technically obtained very big lifting, adaptability is stronger, range of application is wider, automaticity is higher, heating area is bigger, thoroughly solved and made the big defective that unit can't operate as normal because of pressure reduction is little, temperature automatic control technology, automatic decompression, voltage stabilizing technique have been incorporated simultaneously again, the pressure difference compensation automatic control technology makes the intelligent injecting type heat exchange of RPS unit reach a brand-new heat transmission equipment type.It has three big functions: the voltage stabilizing function that reduces pressure automatically, automatic temperature-adjusting constant temperature heat supply function, the automatic regulatory function of pressure reduction.Compared six big characteristics with traditional heat transmission equipment: operating cost reduces more than 80%; Cost descends more than 60%; Maintenance cost reduces more than 95%; Construction investment reduces more than 60%; Noise descends more than 70%; Life-span improves more than 3 times, its topology update grain husk, more perfect functions, energy-conservation more remarkable, operation is more reliable, it is more flexible to install, and keeps in repair more convenient.The duty of RPS injecting type heat exchange unit injector relies on once fully and supplies, the work of backwater pressure reduction, when ejector sprays, mixing chamber produces negative pressure, backwater (being cold water) is inhaled into mixing chamber, mix the purpose that reaches cooling with hot water, confession, backwater pressure reduction are an injector essential condition whether working properly, and therefore, the injector operate as normal must guarantee to supply, backwater pressure reduction satisfies the spraying technique requirement.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing.

Accompanying drawing is a structural representation of the present utility model.

The specific embodiment

A kind of intelligent injecting type heat exchange unit, as shown in drawings, comprise hydraulic ejector 9 and frequency conversion automatic controller, one time the heating pipe network water side is communicated with water inlet pipe 1, water inlet pipe 1 is communicated with hydraulic ejector 9, the delivery port of hydraulic ejector 9 connects secondary heating pipe network water inlet port, and secondary heating pipe network water outlet port connects a heating pipe network water inlet end by return pipe 37; The elementary mixing guiding tube of hydraulic ejector 9 is made of single horn-like awl tube 40 and preceding cylindrical drum 12, the portlet of this horn-like awl tube 40 is connected with preceding cylindrical drum 12 front end nozzles, and chew 8 in the face of matching with the injection in the hydraulic ejector 9, its big opening end edge seals affixed with the internal perisporium of hydraulic ejector 9 mutually, horn-like awl tube 40 inwalls and hydraulic ejector 9 front end internal perisporiums, between chewing 8, injection forms elementary negative pressure drainage chamber 7, horn-like awl tube 40 outer walls and preceding cylindrical drum 12 barrels, hydraulic ejector 9 inwalls form secondary negative pressure drainage chamber 10, before forming, horn-like awl tube 40 outer walls and preceding cylindrical drum 12 inwalls mix liquid chamber 11, at hydraulic ejector 9 rear portions that are positioned at elementary mixing guiding tube secondary mixing guiding tube is being set also, secondary mixing guiding tube is by before a pair of, the horn-like awl tube 13 in back, 16 and back cylindrical drum 15 constitute, the rear end nozzle of horn-like awl tube 13 big opening ends and preceding cylindrical drum 12 is in the face of matching before it, this to horn-like awl tube respectively with after cylindrical drum 15 before, the rear end nozzle connects and composes the back and mixes liquid chamber 14; Water inlet pipe 1 is communicated with bypass pipe 5 one ends, be serially connected with bypass solenoid valve 6 on the bypass pipe 5, and be communicated with elementary negative pressure drainage chamber 7 in hydraulic ejector 9 front ends, elementary negative pressure drainage chamber 7 and secondary negative pressure drainage chamber 10 are interconnected by main negative pressure line 41 and secondary negative pressure line 38 respectively, by helping stream pipeline 42 to connect the water inlet of return pipe 37, and the delivery port place that connects return pipe 37 by two bifurcated pipelines, on main negative pressure line 41 and secondary negative pressure line 38, be serially connected with negative pressure temperature-sensing valve 21 respectively and help stream temperature-sensing valve 23, on this two bifurcateds pipeline, be communicated with return pipe 37 by branch road check-valves 30 and branch road electromagnetic switch valve 31 respectively; Help to cooperate on the stream pipeline 42 and be serially connected with main flow aiding pump 26, be serially connected with main check valve 25 at the stream that helps that is positioned at main flow aiding pump 26 water outlet pumping holes one side on the pipeline 42, the middle part of the return pipe 37 that total electromagnetic switch valve 35 serial connections are installed in, the water outlet port of water inlet pipe 1 is installed with temperature sensor 18, temperature sensor 18 is connected with the input of frequency conversion automatic controller, the output of frequency conversion automatic controller and bypass solenoid valve 6, negative pressure temperature-sensing valve 21, helps stream temperature-sensing valve 23, branch road electromagnetic switch valve 31, total electromagnetic switch valve 35 and branch road check-valves 30 to be connected.

Be connected in series respectively in the water inlet end that is positioned at water inlet pipe 1 and water side import and export switch valve 2 and 17 are installed, on bypass pipe 5, also be serially connected with bypass cock valve 4, at water inlet end that is positioned at return pipe 37 and water side imported valve 36 and outlet valve 29 are installed respectively, on main negative pressure line 41, are serially connected with branch switch valve 22.

On the water inlet pipe 1 between inlet switch valve 2 and the bypass pipe 5, be serially connected with pressure-reducing valve 3, one end induction contact of differential pressure controller 28 is set in place in the water inlet pipe between pressure-reducing valve 3 and bypass pipe 5, and the other end induction contact of differential pressure controller 28 is set in place in the return pipe 37 between two bifurcated pipelines and outlet valve; 1 delivery port place is equipped with temperature sensor 19 and pressure sensor 20 in addition at water inlet pipe, and pressure-reducing valve 3 is connected with the output of frequency-variable controller, differential pressure controller 28, temperature sensor 19 and pressure sensor 20 its input of VFC that is connected.The utility model possesses the pressure difference compensation control technology, and its principle is described below:

This unit has also solved exist one the not smooth problem that causes circulating because of pressure reduction is little in heating system, as pressure of supply water is that 0.4Mpa, pressure of return water are 0.38Mpa, pressure reduction has only 0.02Mpa (often see pressure reduction in the heating field and have only 0.01-0.02Mpa), if the indoor radiator that is equipped with of user, then system exempts from strong circulation, but heating quality does not guarantee, if the user is floor heating then can't have normally heated that this moment, pressure reduction will make a big impact to systemic circulation.For this reason, this unit has solved in design and has caused the not smooth problem of systemic circulation because of pressure reduction is little, principle is: work as confession, backwater pressure reduction is little to a certain degree the time, hydraulic ejector 9 is difficult to produce negative pressure, cold water can't suck, leaving water temperature must raise, differential pressure controller 28 just can be exported a signal, the frequency conversion automatic controller just starts automatically, total electromagnetic switch valve 35 is closed automatically, a bypass solenoid valve 6 and a way solenoid valve 31 are opened automatically, main flow aiding pump 26 work, cold water is down moving in the generation of main flow aiding pump 26, part backwater mixes the liquid chamber 14 and the hybrid cooling of once intaking after negative pressure temperature-sensing valve 21 enters, reach the purpose of cooling heat exchange, main check valve 25 and the branch road electromagnetic switch valve 31 of another part water outlet through being connected in series with main flow aiding pump 26 enters the primary water system, carry out supercharging work, make confession, backwater pressure reduction widens to more than the 0.1Mpa, circulation rate strengthens reaching normal heating, it is little and circulate bad that these technical measures that widen pressure reduction have solved a lot of custom system pressure reduction, bad problem heats, unit is not made any change simultaneously, only depend on this unit one small-sized flow aiding pump can finish supercharging, can reach the cooling heat exchange again, under situation of the same race, to compare with plate type heat exchanger, the change planes circulation pump power of configuration set of the flow aiding pump power ratio plate of this machine utility model is little 3 times.

The stream that helps in main check valve 25 water outlet valve ports one side also is being connected in series a main switching valve 24 on the pipeline 42, also is being connected in series another main switching valve 27 being positioned at helping on the stream pipeline 42 of main flow aiding pump 26 water inlet pumping holes one side.

Main negative pressure line 41 is connected with the water inlet that helps stream pipeline 42 by the standby stream pipeline 43 that helps, be serially connected with standby flow aiding pump 34 standby helping on the stream pipeline 43, be connected in series water-in and water-out backup circuit breaker valve 39 and 32 on the spare duct 43 at standby flow aiding pump 34 import and export two ends respectively, standby between standby flow aiding pump 34 water outlet pumping holes and outlet backup circuit breaker valve 32 helps also to cooperate on the stream pipeline 43 and is serially connected with secondary check-valves 33.

For example, unit is when operation, and the power of the main flow aiding pump 26 of configuration is 7.5KW, and when a supply water temperature was less than or equal to design temperature, main flow aiding pump 26 did not start, and electric quantity consumption is zero; When supply water temperature raises gradually, main flow aiding pump 26 is started working, the increase that adapts with it of its power, slowly starting under the control of frequency conversion automatic controller, its management information system is followed the tracks of the variation of inflow temperature and is controlled the running speed of flow aiding pump, thereby makes outlet temperature reach thermostatic control.As: when 70 ℃ of the inlet temperatures, the actual input of flow aiding pump power is≤1.5KW that RPS adopts temperature control converter technique, energy-conservation can reach about 90%.Injecting type heat exchange unit can be realized the PLC programme-control, and the monitoring of multistation Centralized Monitoring has saved a large amount of spendings, has improved automaticity.

Claims

1. intelligent injecting type heat exchange unit, comprise hydraulic ejector (9) and frequency conversion automatic controller, one time the heating pipe network water side is communicated with water inlet pipe (1), water inlet pipe (1) is communicated with hydraulic ejector (9), the delivery port of hydraulic ejector (9) connects secondary heating pipe network water inlet port, and secondary heating pipe network water outlet port connects a heating pipe network water inlet end by return pipe (37); The elementary mixing guiding tube of hydraulic ejector (9) is made of single horn-like awl tube (40) and preceding cylindrical drum (12), the portlet of this horn-like awl tube (40) is connected with preceding cylindrical drum (12) front end nozzle, and chew (8) in the face of matching with the injection in the hydraulic ejector (9), its big opening end edge seals affixed with the internal perisporium of hydraulic ejector (9) mutually, horn-like awl tube (40) inwall and hydraulic ejector (9) front end internal perisporium, injection is chewed and is formed elementary negative pressure drainage chamber (7) between (8), horn-like awl tube (40) outer wall and preceding cylindrical drum (12) barrel, hydraulic ejector (9) inwall forms secondary negative pressure drainage chamber (10), before forming, horn-like awl tube (40) outer wall and preceding cylindrical drum (12) inwall mix liquid chamber (11), it is characterized in that: secondary mixing guiding tube also is being set at the hydraulic ejector that is positioned at elementary mixing guiding tube (9) rear portion, secondary mixing guiding tube is by before a pair of, the horn-like awl tube in back (13), (16) and back cylindrical drum (15) constitute, the rear end nozzle of horn-like awl tube (13) big opening end and preceding cylindrical drum (12) is in the face of matching before it, this to horn-like awl tube respectively with after cylindrical drum (15) before, the rear end nozzle connects and composes the back and mixes liquid chamber (14); Water inlet pipe (1) is communicated with bypass pipe (5) one ends, be serially connected with bypass solenoid valve (6) on the bypass pipe (5), and with hydraulic ejector (9) front end in elementary negative pressure drainage chamber (7) be communicated with, elementary negative pressure drainage chamber (7) and secondary negative pressure drainage chamber (10) are interconnected by main negative pressure line (41) and secondary negative pressure line (38) respectively, by helping stream pipeline (42) to connect the water inlet of return pipe (37), and the delivery port place that connects return pipe (37) by two bifurcated pipelines, on main negative pressure line (41) and secondary negative pressure line (38), be serially connected with negative pressure temperature-sensing valve (21) respectively and help stream temperature-sensing valve (23), on this two bifurcateds pipeline, be communicated with return pipe (37) by branch road check-valves (30) and branch road electromagnetic switch valve (31) respectively; Help stream pipeline (42) to go up cooperation and be serially connected with main flow aiding pump (26), be serially connected with main check valve (25) being positioned at helping on stream pipeline (42) of main flow aiding pump (26) water outlet pumping hole one side, the middle part of the return pipe (37) that total electromagnetic switch valve (35) serial connection is installed in, the water outlet port of water inlet pipe (1) is installed with temperature sensor (18), temperature sensor (18) is connected with the input of frequency conversion automatic controller, the output of frequency conversion automatic controller and bypass solenoid valve (6), negative pressure temperature-sensing valve (21), help stream temperature-sensing valve (23), branch road electromagnetic switch valve (31), total electromagnetic switch valve (35) and branch road check-valves (30) are connected.

2. intelligent injecting type heat exchange unit according to claim 1, it is characterized in that: be connected in series respectively in the water inlet end that is positioned at water inlet pipe (1) and water side import and export switch valve (2) and (17) are installed, on bypass pipe (5), also be serially connected with bypass cock valve (4), at water inlet end that is positioned at return pipe (37) and water side imported valve (36) and outlet valve (29) are installed respectively, on main negative pressure line (41), are serially connected with branch switch valve (22).

3. intelligent injecting type heat exchange unit according to claim 2, it is characterized in that: on the water inlet pipe (1) that is positioned between inlet switch valve (2) and the bypass pipe (5), be serially connected with pressure-reducing valve (3), one end induction contact of differential pressure controller (28) is set in place in the water inlet pipe between pressure-reducing valve (3) and bypass pipe (5), and the other end induction contact of differential pressure controller (28) is set in place in the return pipe (37) between two bifurcated pipelines and outlet valve; At water inlet pipe (1) delivery port place temperature sensor (19) and pressure sensor (20) are installed in addition, the output of pressure-reducing valve (3) and frequency-variable controller is connected, differential pressure controller (28), temperature sensor (19) and pressure sensor (20) its input of VFC that is connected.

4. intelligent injecting type heat exchange unit according to claim 1, it is characterized in that: also be connected in series a main switching valve (24) helping on stream pipeline (42) of main check valve (25) water outlet valve port one side, also be connected in series another main switching valve (27) being positioned at helping on the stream pipeline (42) of main flow aiding pump (26) water inlet pumping hole one side.

5. intelligent injecting type heat exchange unit according to claim 1, it is characterized in that: main negative pressure line (41) is connected with the water inlet that helps stream pipeline (42) by the standby stream pipeline (43) that helps, be serially connected with standby flow aiding pump (34) standby helping on the stream pipeline (43), advance at standby flow aiding pump (34), be connected in series respectively on the spare duct (43) at outlet two ends, water outlet backup circuit breaker valve (39) and (32), standby between standby flow aiding pump (34) water outlet pumping hole and outlet backup circuit breaker valve (32) help also to cooperate on the stream pipeline (43) and are serially connected with secondary check-valves (33).