CN201688487U - Heat supplying unit using steam as heating media - Google Patents
Heat supplying unit using steam as heating media Download PDFInfo
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- CN201688487U CN201688487U CN2010201971221U CN201020197122U CN201688487U CN 201688487 U CN201688487 U CN 201688487U CN 2010201971221 U CN2010201971221 U CN 2010201971221U CN 201020197122 U CN201020197122 U CN 201020197122U CN 201688487 U CN201688487 U CN 201688487U
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Abstract
The utility model provides a heat supplying unit using steam as heating media. The steam is firstly converted into condensed water, and the condensed water is inputted into the heat supplying unit of a heat supplying pipe network. The heat supplying unit comprises a steam inlet pipe, a heat exchanger and the heat supplying pipe network, the heat exchanger is communicated with the steam inlet pipe, the heat supplying pipe network is used for supplying heat to external, the heat exchanger comprises a steam inlet, a condensed water outlet, a circulating water inlet and a circulating water outlet, and the heat supplying pipe network includes a water supply pipe and a return water pipe communicated with the circulating water inlet. The heat supplying unit is characterized in that the heat supplying pipe network is further provided with an ejector, a water outlet pipe and a condensed water outlet pipe, one water inlet of the ejector is communicated with the circulating water outlet by the aid of the water outlet pipe, another water inlet of the ejector is communicated with the condensed water outlet by the aid of the condensed water outlet pipe, and a water outlet of the ejector is communicated with the water supply pipe. The heat supplying unit effectively avoids vibration and noise generated by steam and water mixing in an original heat supplying unit, and simultaneously achieves the purposes of cost economization and improvement in energy resource use rate.
Description
Technical field
It is the heat supply unit of heating agent with steam that the utility model relates to a kind of, and in particular, relating in particular to a kind of elder generation is steam-reforming that condensate water is condensate water input heating network the hot unit of heating agent with steam again.
Background technology
Steam is a kind of purposes energy very widely, the heat energy of steam can be used to carry out central heating, existing is that the heat supply method of heating agent has two kinds basically with steam, a kind of is to give recirculated water in the heating network thermal energy transfer of steam by the surface-type heat exchange mode, in the process of transmitting heat, steam is liquefied and is condensate water, is injected in the open type water supply tank of temporary condensate water by drain valve then, supplies with the heating network supplementing water and uses; Another kind is that recirculated water direct steam by steam jet ejector and in the heating network mixes.
In above-mentioned first kind of heat supply method, water supply tank is the open type normal pressure normally, and links to each other with running water pipe, and the running water water inlet is controlled by ball-cock assembly.The shortcoming of this heat supply method is after condensate water enters water supply tank by drain valve, and original pressure can total loss.In addition, because condensate water is the low discharge Continuous Flow, and the moisturizing of system is the step water supplementing method of big flow, make and to be added into the water overwhelming majority in the heating network from running water, rather than high-quality condensate water, this just makes most of condensate water and the waste heat that had having slatterned in vain.When not dehydration of system, just do not need moisturizing, at this moment, condensate water just flows in the gutter by the water supply tank overfall, and this just makes condensate water and the waste heat that had having slatterned in vain, and promptly the resource of original steam is not utilized fully.Circulation water direct owing to steam and in the heating network mixes in above-mentioned second kind of heat supply method, though utilized heat energy that steam had and pressure energy, but there is the shortcoming that prior art is difficult to overcome in this heat supply method, be exactly high temperature and high pressure steam with process that water in the heating network mixes in, can produce vibrations and noise, this vibrations and noise can transmit along heating network.In addition, owing in this method, under steam pressure fluctuation situation, regulate comparatively difficulty, so the adaptation condition ability.
Corresponding with two kinds of heat supply methods recited above, the structure that with steam is the heat supply unit of heating agent also has two kinds of forms, a kind of be steam enter the pipe communicate with the steam inlet of surface-type heat exchanger, steam passes to recirculated water to energy by surface-type heat exchanger, and the condensate water of surface-type heat exchanger inside is added in the heating network via water supply tank again; Another kind is that steam enters pipe and the backwater manage-style is not connected with two inlets of steam jet ejector, after steam and recirculated water backwater mix in steam jet ejector, flows out via the outlet of steam jet ejector.These the two kinds shortcomings that to be the shortcoming that exists of the heat supply unit of heating agent with steam exist with above-mentioned corresponding method are identical.
Summary of the invention
The utility model is in order to overcome the shortcoming of above-mentioned technical problem, and it is steam-reforming that condensate water is condensate water input heating network the heat supply unit of heating agent with steam again that a kind of elder generation is provided.
Of the present utility model is the heat supply unit of heating agent with steam, comprises that steam enters pipe, enters the heat exchanger that pipe is connected with steam and is used for heating network to extraneous heat supply; Described heat exchanger comprises steam inlet, condensate water outlet, circulating water intake, circulating water outlet, described heating network comprises feed pipe and the return pipe that is communicated with circulating water intake, its special feature is: described heating network also is provided with injector, outlet pipe and condensate water outlet pipe, a water inlet of described injector is connected with circulating water outlet by outlet pipe, another water inlet of described injector is connected with the condensate water outlet by the condensate water outlet pipe, and the delivery port of described injector is connected with feed pipe.It is steam from the HTHP of vapour source that steam enters in the pipe, and steam enters into heat exchanger via the steam inlet of heat exchanger; Circulating water flow in the heating network flow in the heat exchanger by return pipe behind the user, steam carries out heat exchange with the heat exchange method and the recirculated water of surface-type in heat exchanger, recirculated water after the intensification flows in the outlet pipe through the circulating water outlet of heat exchanger, and outlet pipe is connected with the input port of injector; Steam liquefies in heat exchanger to condensate water is flowed out by the condensate water outlet of heat exchanger afterwards, and flow into another input port of injector through the condensate water outlet pipe; Condensate water and be heated after recirculated water flow in the feed pipe after in injector, mixing, the circulating water flow that flows out via feed pipe flows into return pipe again after user's use, finish the once circulation in the heating network.
Of the present utility model is the heat supply unit of heating agent with steam, and described heat exchanger is the surface-type vapor-water heat exchanger; Described injector is a water water jet device, and described injector comprises mixing chamber and diffuser pipe.Adopt surface-type heat exchanger to realize the heat transmission of steam and recirculated water, avoided steam to contact with the direct of recirculated water, institute produces vibrations and noise when also just having prevented the carbonated drink mixing, makes heat supply unit of the present utility model can be applicable in the various environment; Two input ports of water water jet device are the input port that is connected with water pipe, mix by mixing chamber condensate water and recirculated water in the injector, when carrying out mass transfer, finished heat transfer, circulating water temperature further improves, and the pressure of mixed recirculated water is improved, reach the purpose that makes full use of condensate water heat energy, pressure energy and high-quality condensate water; By the diffusion action of injector diffuser pipe, further improved the pressure that mixes back recirculated water again.
Of the present utility model is the heat supply unit of heating agent with steam, and described steam enters pipe and upward is disposed with gate valve, filter, temperature-sensing valve, gate valve, Pressure gauge, thermometer according to the flow direction of steam; Rise by itself and injector delivery port junction on the described feed pipe and follow the ring water direction that flows and be disposed with check valve, Pressure gauge, thermometer, gate valve; Recirculated water mobile direction in described return pipe upper edge is disposed with gate valve, dirt separator, safety valve, thermometer, Pressure gauge, gate valve.Enter at steam two gate valves are set on the pipe, be convenient to that filter is removed contamination and the temperature-sensing valve maintenance.The filter that steam enters on the pipe is used for filtering the jet chimney solid sundries; The check valve that is provided with on the feed pipe flows backwards in order to prevent the recirculated water in the feed pipe, and the dirt separator on the return pipe is used for removing the solid sundries that the heating network pipeline refluxes.
Of the present utility model is the heat supply unit of heating agent with steam, include temperature control system, this temperature control system comprises and is arranged at the temperature sensor that is used to measure the feed pipe water temperature inside on the feed pipe, is arranged on steam and enters Guan Shangke and carry out the temperature-sensing valve that aperture regulates and be arranged at control circuit in the electrical control cubicles.Be arranged on the temperature sensor on the feed pipe, be used for detecting the temperature of feed pipe water, and detected data are passed to the control circuit of electrical control cubicles inside, calculating by control circuit, judge that the relative design temperature of the temperature of water is normal, too high or low excessively in the feed pipe, and then temperature-sensing valve is controlled; If it is too high to record in the feed pipe water temperature, control circuit will reduce the aperture of temperature-sensing valve, if it is low excessively to record in the feed pipe water temperature, will increase the aperture of temperature-sensing valve, if it is normal to record temperature, then temperature-sensing valve keeps original aperture.
Of the present utility model is the heat supply unit of heating agent with steam, also be provided with the circulating pump system that guarantees the heating network operate as normal, this circulating pump system comprises and is arranged at the first teletransmission Pressure gauge that is used to detect pressure of supply water on the feed pipe, is arranged at and is used to detect the second teletransmission Pressure gauge, the circulating pump of pressure of return water and the control circuit that is arranged at electrical control cubicles inside on the return pipe; The pipeline that is connected with the water inlet of circulating pump is provided with gate valve, and the pipeline that is connected with the delivery port of circulating pump is provided with check valve and gate valve.In order to guarantee that recirculated water circulates in heating network, the difference that must guarantee the force value of water in the force value of water in the feed pipe and the return pipe is greater than a certain particular value, promptly the measured pressure differential of the first teletransmission Pressure gauge and the second teletransmission Pressure gauge is greater than a certain particular value, under the situation of feed pipe insufficient pressure, need supply water to user side by circulating pump, sufficient pressure be arranged so that guarantee.Check valve on check valve on the feed pipe and the circulating-pump outlet pipeline all is in order to prevent the refluence of recirculated water.
Of the present utility model is the heat supply unit of heating agent with steam, and described circulating pump is for carrying out the circulating pump of variable frequency adjustment.The benefit that the circulating pump variable ratio frequency changer is regulated is, the heating network loop needs great pressure, and circulating pump just provides great pressure, and this not only helps the saving of the energy, can guarantee that also recirculated water has stable flow rate.
The beneficial effects of the utility model are:
In the heat supply unit of the present utility model, steam enters steam in the pipe and the recirculated water in the heating network is realized heat exchange by surface-type heat exchanger, the vibrations and the noise that have been produced when having avoided carbonated drink in original heat supply unit to mix have enlarged the application scenario of heat supply unit; The condensate water of steam-reforming is mixed by injector with recirculated water, has made full use of the energy (pressure energy and sensible heat) and the high-quality condensate water of condensate water, has reached the purpose that cost savings, energy utilization rate improve.
Description of drawings
Fig. 1 is the schematic diagram of existing first kind of heat-supplying mode;
Fig. 2 is the schematic diagram of existing second kind of heat-supplying mode;
Fig. 3 for of the present utility model be the heat-supplying mode schematic diagram of the heat supply unit of heating agent with steam;
Fig. 4 for of the present utility model be the heat supply unit schematic diagram of heating agent with steam.
Among the figure: 1 steam enters pipe, 2 heat exchangers, 3 injectors, 4 stop valves, 5-1,5-2, the 5-3 Pressure gauge, 6-1,6-2, the 6-3 thermometer, 7-1, the 7-2 check valve, 8-1,8-2,8-3,8-4,8-5,8-6,8-7,8-8,8-9,8-10, the 8-11 gate valve, 9 electrical control cubicles, 10 outlet pipes, 11 condensate water outlet pipes, 12 feed pipes, 13 return pipes, 14 water supply tanks, 15 small pumps, 16 filters, 17 temperature-sensing valves, 18 dirt separators, 19 first teletransmission Pressure gauges, 20 second teletransmission Pressure gauges, 21 circulating pumps, 22 safety valves, 23 charging pipes, 24 temperature sensors, 25 drain valves, 26 running water water inlet pipes, 27 overfalls, 28 carbonated drink injectors.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 has provided the schematic diagram of existing first kind of heat-supplying mode, shown steam enters pipe 1 and is connected with the steam inlet of heat exchanger 2, recirculated water in the heating network is flowed through by return pipe 13 behind the heat exchanger 2, flow into feed pipe 12 again, and recirculated water and steam are realized heat exchange in heat exchanger 2, steam is liquefied and is condensate water in the process of heat exchange, and then condensate water is input in the supply case 14 by the condensate water outlet pipe 11 that is connected with heat exchanger 2, the small pump that utilizes intermittently is input to condensate water in the feed pipe 12, realizes condensing water reuse; Generally, water supply tank 14 also is provided with running water water inlet pipe 26 and overfall 27.There are three bigger shortcomings in this heat exchange mode, the one,, the temperature requirement of condensate water is lower, in the heat supply process standard, require generally not to be higher than 80 ℃, this has just strengthened the heat exchange area of heat exchanger 2, thereby makes that the volume of heat exchanger 2 is bigger, promptly increase the cost of heat exchanger, also required bigger installing space; The 2nd,, the heat energy of condensate water and pressure can be by having slatterned in vain; The 3rd, because very little of the flow of condensate water, and small pump 15 be intermittently moisturizing, the water that makes benefit go into is not condensate water, but a large amount of running water, high-quality condensate water has been wasted.
Fig. 2 has provided the schematic diagram of existing second kind of heat-supplying mode, and shown steam enters pipe 1 and is connected with the input port of return pipe 13 with steam jet ejector 28, is used to realize mixing of steam and recirculated water, and steam mixes with recirculated water after by feed pipe 12 outflows.The shortcoming of this heat-supplying mode is, steam and recirculated water can produce vibrations and noise in the process of mixing, and the vibrations that produced and noise can carry out long-distance transmissions by heating network.
Heat supply unit embodiment, as shown in Figure 3, heat supply unit of the present utility model comprises that steam enters pipe 1, heat exchanger 2, injector 3, outlet pipe 10, condensate water outlet pipe 11, feed pipe 12, return pipe 13.It is the detailed schematic diagram of heat supply unit of heating agent with steam that Fig. 4 has provided of the present utility model, and shown heat exchanger 2 is the surface-type vapor-water heat exchanger, and it comprises steam inlet, condensate water outlet, circulating water intake, circulating water outlet; Shown injector 3 is the injector of water water form, and it comprises two input ports and an output port.Steam enters pipe 1 and is connected with the steam inlet of heat exchanger 2, the flow direction that enters pipe 1 upper edge steam at steam is disposed with gate valve 8-10, filter 16, temperature-sensing valve 17, gate valve 8-11, Pressure gauge 5-1, thermometer 6-1, acting in conjunction by gate valve 8-10 and gate valve 8-11 can realize that filter 16 is removed contamination and temperature-sensing valve 17 maintenances, filter 16 can prevent that foreign material enter temperature-sensing valve in the steam pipework, influences its operate as normal.Temperature-sensing valve 17 is the controlled valve of aperture, and temperature-sensing valve 17 can be realized the steam flow that flow in the heat exchanger 2 is controlled; Shown stop valve 4 and coupled pipeline are formed stand-by channel, when temperature-sensing valve 17 can't operate as normal, gate valve 8-10 and gate valve 8-11 can be closed, open stop valve 4, make vapor stream steam is provided for heat exchanger 2, make heating system of the present utility model carry out work through the pipeline at stop valve 4 places.
As shown in Figure 4, the outlet of the condensate water of heat exchanger 2 is connected by condensate water outlet pipe 11 with an input port of injector 3, and condensate water outlet pipe 11 is provided with gate valve 8-5; The circulating water outlet of heat exchanger 2 is connected with another input port of injector 3 by outlet pipe 10, and outlet pipe 10 is provided with gate valve 8-1; The delivery port of injector 3 is connected with feed pipe 12, the flow direction of feed pipe 12 upper edge recirculated waters is disposed with check valve 7-1, Pressure gauge 5-2, thermometer 6-2, temperature sensor 24, the first teletransmission Pressure gauge 19, gate valve 8-2, check valve 7-1 plays the effect that restriction recirculated water flows backwards, and temperature sensor 24 can be realized the temperature of the recirculated water that records is sent in the control circuit of electrical control cubicles 9.Return pipe 13 is connected with the circulating water intake of heat exchanger, flow direction according to recirculated water on the return pipe 13 is disposed with gate valve 8-9, the second teletransmission Pressure gauge 20, dirt separator 18, safety valve 22, thermometer 6-3, Pressure gauge 5-3, gate valve 8-6, the second teletransmission Pressure gauge 20 is used for measuring the pressure of return pipe 13 recirculated waters, and the force value that records is sent in the control circuit in the electrical control cubicles 9; The unlatching value of safety valve 22 can be set according to circulatory system level pressure needs, when the force value in the return pipe 13 reaches the force value of setting, safety valve 22 unlatchings are also carried out pressure release, in the process of installing, should guarantee the circulating water intake of safety valve 22, so just can guarantee that the temperature of the water that safety valve 22 flows out is lower near heat exchanger 2.
As shown in Figure 4, the pipeline that is in parallel with check valve 7-1 is provided with circulating pump 21, the pipeline that links to each other with the input port of circulating pump 21 is provided with gate valve 8-3, the pipeline that is connected with the output port of circulating pump 21 is provided with check valve 7-2 and gate valve 8-4, circulating pump 21 is for carrying out the circulating pump of frequency modulation control, and check valve 7-2 can prevent the refluence of recirculated water.Also be provided with a pipeline between the delivery outlet pipeline of injector 3 and return pipe 13, this pipeline is provided with gate valve 8-7, and this pipeline also is connected with charging pipe 23, and charging pipe 23 is used for carrying out water-filling to heating network, and gate valve 88 is installed on the charging pipe.
Control circuit in the first teletransmission Pressure gauge 19 on the feed pipe 12, the check valve 7-2 on the second teletransmission Pressure gauge 20, circulating pump 21 and the circulating pump 21 on the return pipe 13 and two gate valve 8-3,8-4, the electrical control cubicles 9 has constituted circulating pump system, control circuit in the electrical control cubicles 9 passes through the calculating to the difference of the first teletransmission Pressure gauge 19 and second teletransmission Pressure gauge 20 numerical value of gathering, and judge whether its difference is lower than setting, as be lower than specified minimum value, then carry out the moisturizing supercharging, make the recirculated water in the heating network can proper flow by circulating pump 21.Steam enters temperature-sensing valve 17, the temperature sensor 24 on the feed pipe 12 on the pipe 1 and is arranged at electrical control cubicles 9 interior control circuits has formed temperature control system.The temperature of recirculated water is 95 ℃ in the feed pipe of supposing to set 12, when the transmission temperature value that detects temperature sensor 24 when control circuit is higher than 95 ℃, will reduce the aperture of temperature-sensing valve 17; When being lower than 95 ℃, then increase the aperture of temperature-sensing valve 17,, realize supply water temperature is controlled by control to steam flow.
Operating procedure when heat supply unit of the present utility model uses:
At first, close stop valve 4, gate valve 8-10 and gate valve 8-11, open all the other gate valve 8-1,8-2,8-3,8-4,8-5,8-6,8-7,8-8,8-9, charging pipe 23 is connected with the water source, carry out water-filling for whole heating network by circulating pump 21, when safety valve 22 beginning pressure releases, stop the operation of circulating pump 21, and closing gate valve 8-7 and gate valve 8-8, the heating network water-filling finishes; Then, manually opened circulating pump 21 flows the recirculated water in the heating network, opens gate valve 8-11 earlier, slowly opens gate valve 8-10 again, and whole heating system brings into operation; After treating that whole system operates steadily, circulating pump 21 is switched to automatic control mode, at this moment, circulating pump 21 just can record the difference of pressure according to the first teletransmission Pressure gauge 19 and the second teletransmission Pressure gauge 20, carries out variable frequency adjustment control, the saving of favourable electric energy.
In the process of operation, steam enters pipe 1 via steam and enters into heat exchanger 2, the heat exchange of recirculated water in realization and the heating network; The condensate water that steam-reforming is enters injector 3 by condensate water outlet pipe 11, and the circulation water in injector 3 after condensate water and the intensification mixes and flows to user side by feed pipe 12, uses for the user; The recirculated water that is flowed out by user side flow into by return pipe 13 and carries out heat exchange in the heat exchanger 2, finishes once circulation.
In the process of operation, because condensate water constantly adds in the heating network, cause the pressure of system constantly to raise, by the pressure release of safety valve 22, the pressure that can guarantee recirculated water in the heating network is in normal scope.The supply water temperature of the recirculated water in the water supply network is regulated and is controlled by temperature sensor 24, temperature-sensing valve 17 and the control circuit that is arranged in the electrical control cubicles 9.
Claims (6)
1. one kind is the heat supply unit of heating agent with steam, comprises that steam enters pipe (1), enters the heat exchanger (2) that pipe (1) is connected with steam and is used for heating network to extraneous heat supply; Described heat exchanger comprises steam inlet, the condensate water outlet, circulating water intake, circulating water outlet, the return pipe (13) that described heating network comprises feed pipe (12) and is communicated with circulating water intake, it is characterized in that: described heating network also is provided with injector (3), outlet pipe (10) and condensate water outlet pipe (11), a water inlet of described injector is connected with circulating water outlet by outlet pipe (10), another water inlet of described injector is connected with the condensate water outlet by condensate water outlet pipe (11), and the delivery port of described injector is connected with feed pipe (12).
2. according to claim 1 is the heat supply unit of heating agent with steam, it is characterized in that: described heat exchanger (2) is the surface-type vapor-water heat exchanger; Described injector (3) is a water water jet device, and described injector (3) comprises mixing chamber and diffuser pipe.
3. according to claim 1 and 2 is the heat supply unit of heating agent with steam, it is characterized in that: described steam enters pipe (1) and upward is disposed with gate valve (8-10), filter (16), temperature-sensing valve (17), gate valve (8-11), Pressure gauge (51), thermometer (61) according to the flow direction of steam; Described feed pipe (12) is gone up to be risen by itself and injector (3) delivery port junction and is followed the mobile direction of ring water and be disposed with check valve (7-1), Pressure gauge (5-2), thermometer (6-2), gate valve (8-2); Recirculated water mobile direction in described return pipe (13) upper edge is disposed with gate valve (8-9), dirt separator (18), safety valve (22), thermometer (6-3), Pressure gauge (5-3), gate valve (8-6).
4. according to claim 3 is the heat supply unit of heating agent with steam, it is characterized in that: include temperature control system, this temperature control system comprises and is arranged at the temperature sensor (24) that is used to measure feed pipe (12) water temperature inside on the feed pipe (12), is arranged on steam and enters and can carry out the temperature-sensing valve (17) that aperture regulates on the pipe (1) and be arranged at the interior control circuit of electrical control cubicles (9).
5. according to claim 3 is the heat supply unit of heating agent with steam, it is characterized in that: also be provided with the circulating pump system that guarantees the heating network operate as normal, this circulating pump system comprises and is arranged at the first teletransmission Pressure gauge (19) that is used to detect pressure of supply water on the feed pipe (12), is arranged at and is used to detect the second teletransmission Pressure gauge (20), the circulating pump (21) of pressure of return water on the return pipe (13) and is arranged at the inner control circuit of electrical control cubicles (9); The pipeline that is connected with the water inlet of circulating pump (21) is provided with gate valve (8-3), and the pipeline that is connected with the delivery port of circulating pump (21) is provided with check valve (7-2) and gate valve (8-4).
6. according to claim 5 is the heat supply unit of heating agent with steam, it is characterized in that: described circulating pump (21) is for carrying out the circulating pump of variable frequency adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201971221U CN201688487U (en) | 2010-05-20 | 2010-05-20 | Heat supplying unit using steam as heating media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201971221U CN201688487U (en) | 2010-05-20 | 2010-05-20 | Heat supplying unit using steam as heating media |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201688487U true CN201688487U (en) | 2010-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201971221U Expired - Fee Related CN201688487U (en) | 2010-05-20 | 2010-05-20 | Heat supplying unit using steam as heating media |
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| Country | Link |
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| CN (1) | CN201688487U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936567A (en) * | 2010-05-20 | 2011-01-05 | 王建新 | Heat supply method and heat supply unit taking steam as heating medium |
| CN102313278A (en) * | 2011-04-18 | 2012-01-11 | 苏州市吴赣药业有限公司 | Solar energy collecting and preheating device |
| CN106765046A (en) * | 2016-12-30 | 2017-05-31 | 济南华闻节能工程技术有限公司 | Low parameter steam recycling device with injector |
-
2010
- 2010-05-20 CN CN2010201971221U patent/CN201688487U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936567A (en) * | 2010-05-20 | 2011-01-05 | 王建新 | Heat supply method and heat supply unit taking steam as heating medium |
| CN101936567B (en) * | 2010-05-20 | 2012-08-29 | 王建新 | Heat supply method and heat supply unit taking steam as heating medium |
| CN102313278A (en) * | 2011-04-18 | 2012-01-11 | 苏州市吴赣药业有限公司 | Solar energy collecting and preheating device |
| CN106765046A (en) * | 2016-12-30 | 2017-05-31 | 济南华闻节能工程技术有限公司 | Low parameter steam recycling device with injector |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JI NAN HANJIE ENERGY-SAVING + ENVIRONMENTAL PROTEC Free format text: FORMER OWNER: WANG JIANXIN Effective date: 20120702 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120702 Address after: 250013, room two, building 3, building D, Kaiyuan villa, No. 108, ring mountain road, Lixia District, Ji'nan, Shandong, Patentee after: Ji'nan hjiejie energy-saving environmental protection equipment Co. Address before: 250013, room two, building 3, building D, Kaiyuan villa, No. 108, ring mountain road, Lixia District, Ji'nan, Shandong, Patentee before: Wang Jianxin |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20130520 |