CN103742965A - Heat exchange unit - Google Patents
Heat exchange unit Download PDFInfo
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- CN103742965A CN103742965A CN201310715123.9A CN201310715123A CN103742965A CN 103742965 A CN103742965 A CN 103742965A CN 201310715123 A CN201310715123 A CN 201310715123A CN 103742965 A CN103742965 A CN 103742965A
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Abstract
A heat exchange unit relates to a heat exchanger. A common heat exchange unit is assembled on an installation site, a professional operator needs to monitor the device constantly when the device is installed, cost is high, water is wasted, and the unit is large in occupation area and complex in control after assembly. The heat exchange unit comprises a heat exchange device and a control device used for controlling the heat exchange device to work. The heat exchange unit is characterized in that the heat exchange device is arranged on a base, the heat exchange device comprises a pipe casing type heat exchanger, a plate heat exchanger, a temperature control valve, a circulation pump, a water supplementing pump, a valve, a temperature gauge, a pressure meter, a temperature sensor and a pressure sensor. The temperature sensor is arranged on a secondary side outlet, a temperature signal of the temperature sensor is fed back to the control device, and the control device controls the temperature control valve to act. The heat exchange device is arranged on the base, onsite assembly is not required, cost is reduced by means of combination of the plate heat exchanger and the pipe casing type heat exchanger, and hot water of two different temperatures can be produced to meet different requirements.
Description
Technical field
The present invention relates to a kind of heat exchanger.
Background technology
Along with the development of national economy, in heating field, due to the requirement more and more higher aspect energy-conserving and environment-protective, in community heating, domestic water, enterprise's production technology, with in the systems such as hot water, central heating has become main flow.Traditional central heating heat exchange unit, mainly by steam or high-temperature-hot-water as heating agent, generally by shell-and-tube heat exchanger (if primary fluid is steam and temperature when higher, adopts plate type heat exchanger to install the temperature that temperature-decreased pressure reducer makes primary fluid additional and drop in 150 ℃), circulating pump, small pump, valve, instrument, electrical control cubicles and annex, be formed by combining.
Existing problems and shortcoming: these equipment generally all carry out assembled in erecting bed, need professional operating personnel to monitor constantly during equipment operation.As adopt plate type heat exchanger to add reducing-and-cooling plant to have increased investment, and wasted a part of high-temperature condensation water.In addition, after these device assembles, floor space is large, control is complicated.
Summary of the invention
The technical assignment of the technical problem to be solved in the present invention and proposition is that prior art scheme is improved and improved, and a kind of heat exchange unit is provided, to reduce floor space, convenient object of installing.For this reason, the present invention takes following technical scheme.
A kind of heat exchange unit, comprise the control device of heat-exchanger rig and the work of control heat-exchanger rig, it is characterized in that: described heat-exchanger rig is located on a base, described heat-exchanger rig comprises shell-and-tube heat exchanger, plate type heat exchanger, temperature-sensing valve, circulating pump, small pump, valve, thermometer, pressure gauge, temperature sensor, pressure sensor, primary side heating agent enters shell-and-tube heat exchanger through temperature-sensing valve and carries out heat exchange for the first time, emit and enter again plate type heat exchanger after a part of heat and carry out secondary heat exchange, discharge after again emitting heat; Secondary side water at low temperature is sent after circulating pump enters shell-and-tube heat exchanger or plate type heat exchanger heating, described temperature sensor is located at secondary side outlet, it feeds back to control device by temperature signal, thereby control device control temperature-sensing valve moves to regulate flow rate of heat medium to control secondary side leaving water temperature.Heat-exchanger rig is located on a base, avoids scene to carry out assembled, during equipment operation, without professional operating personnel, monitors constantly.By plate type heat exchanger, add shell-and-tube heat exchanger combination replacement plate type heat exchanger and add reducing-and-cooling plant, reduced cost, and can produce neither synthermal hot water, to meet the different needs.
As the further of technique scheme improved and supplemented, the present invention also comprises following additional technical feature.
Described shell-and-tube heat exchanger is positioned at the upper strata of device, and described plate type heat exchanger is located at the front left side of base, and described control device is located at the right lateral side of base, and circulating pump, small pump are established in the middle part of base; Described circulating pump, the lower floor that small pump is positioned at device; The both sides, front and back in device middle level are respectively equipped with the first collecting pipe, the second collecting pipe.Control device, away from heat exchanger, avoids the heat of heat exchanger to pass to control device the functional reliability of assurance device; Collecting pipe is used for connecting circulating pump, small pump, reduces the complexity of pipeline, is beneficial to maintenance, and valve can be located at the upper and lower sides of collecting pipe, convenient operation control.
Described shell-and-tube heat exchanger, plate type heat exchanger is equipped with primary side heat release pipe and secondary side endothermic tube, entrance point and the port of export of described shell-and-tube heat exchanger, the secondary side endothermic tube of plate type heat exchanger are equipped with valve, the import of shell-and-tube heat exchanger secondary side endothermic tube imported valve communicates with the second collecting pipe and forms the first branch road with the import of plate exchanger secondary side endothermic tube imported valve, and the outlet of shell-and-tube heat exchanger secondary side endothermic tube outlet valve is connected to form the second branch road with the outlet of plate exchanger secondary side endothermic tube outlet valve by pipeline.The first branch road, the second branch road can be realized the hot water of two kinds of different temperatures to meet the different needs.
Heat-exchanger rig is established the secondary side circulatory system, water charging system, the described secondary side circulatory system comprises recursive filter, the first circulating pump, the first check-valves, recursive filter outlet communicates with the first collecting pipe by valve, the first pump inlet communicates with the first collecting pipe by valve, and the first check-valves outlet communicates with the second collecting pipe by valve; Water charging system comprises the first moisturizing branch road, and the first described moisturizing branch road comprises the first filter, the first stop valve, the first small pump, the second check-valves, the second stop valve that by pipeline, connect successively, and the outlet of the second stop valve communicates with the first collecting pipe.
Water charging system also comprises the second moisturizing branch road, the second described moisturizing branch road comprises the second filter, the 3rd stop valve, the second small pump, the 3rd check-valves, the 4th stop valve that by pipeline, connect successively, and the port of export of the 4th stop valve communicates with the first collecting pipe.
The secondary side circulatory system also comprises the first circulation bypass, and the first circulation bypass comprises the second circulating pump, the 4th check-valves that by pipeline, connect successively, and the import of the second circulating pump communicates with the first collecting pipe by valve; The outlet of the 4th check-valves communicates with the second collecting pipe by valve.The first circulation bypass, meeting under user's instructions for use prerequisite, reduces the loss of secondary side resistance to water-flow as far as possible, thereby is equipped with the less circulating pump of power consumption, saves electric energy.
The secondary side circulatory system also comprises the 5th check-valves, and the import of the 5th check-valves communicates with the first collecting pipe, and outlet communicates with the second collecting pipe; The import and export of described temperature-sensing valve are equipped with valve.
The first collecting pipe is provided with pressure and takes into account thermometer, and the second collecting pipe is provided with safety valve, pressure gauge.
The first small pump, the second small pump, the first circulating pump, the second circulating pump are the water pump by Frequency Converter Control, and the input of frequency converter is connected with the output of control device.
The outlet of device secondary side is provided with pressure gauge, thermometer, pressure sensor, temperature sensor, and described pressure sensor, the output of temperature sensor are connected with the input of control device; Described plate type heat exchanger primary side heat release outlet is provided with drain valve, the import and export of drain valve are equipped with valve, between the outlet of the import of drain valve imported valve and drain valve outlet valve, by another valve, communicate, the outlet of device primary side is provided with pressure gauge and thermometer.Debugging, the maintenance of device is convenient in the setting of valve.
Beneficial effect:
1, adopt shell-and-tube heat exchanger to add board-like heat exchanger package and close structure, when primary fluid temperature is higher, saved and installed complicated reducing-and-cooling plant additional to guarantee independent plate type heat exchanger operation, than independent employing shell-and-tube heat exchanger or plate type heat exchanger, significantly improved heat transfer efficiency;
2, the annexes such as shell-and-tube heat exchanger, plate type heat exchanger, temperature-sensing valve, circulating pump, small pump, valve, instrument, electrical control cubicles and all kinds of pipelines are tightly combined into an organic whole, are equivalent to complete " heat exchange station ".The scene that greatly facilitates user is used, and has saved on-the-spot composite assembly, and user only need to be connected the import and export of primary side heating agent with the import and export of secondary side hot water.
3, heat exchange unit adopts the control of PLC automation control system, according to outdoor temperature, change temperature in automatic control room, circulating pump and small pump all adopt VFC, and small pump is accepted the pressure signal of pressure sensor, automatic start-stop, automatically keeping system pressure stability.Effectively saved the primary fluid energy.
4, design unique secondary side bypass line, met under the prerequisite of user's instructions for use, reduced secondary side resistance to water-flow loss as far as possible, thereby be equipped with the less circulating pump of power consumption, saved electric energy.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is structure principle chart of the present invention.
In figure: 1-base; 2-shell-and-tube heat exchanger; 3-plate type heat exchanger; 4-temperature-sensing valve; 5-the first circulating pump; 6-the second circulating pump; 7-the first small pump; 8-the second small pump; 9-thermometer; 10-pressure gauge; 11-temperature sensor; 12-pressure sensor; 13-the first collecting pipe; 14-the second collecting pipe; 15-the first check-valves; 16-the second check-valves; 17-the 3rd check-valves; 18-the 4th check-valves; 19-the 5th check-valves; 20-the first stop valve; 21-the second stop valve; 22-the 3rd stop valve; 23-the 4th stop valve; 24-recursive filter; 25-the first filter; 26-the second filter; 27-drain valve; 28-safety valve; 29-control device.
The specific embodiment
Below in conjunction with Figure of description, technical scheme of the present invention is described in further detail.
As shown in Figure 1, 2, the present invention includes the control device 29 of heat-exchanger rig and the work of control heat-exchanger rig, described heat-exchanger rig is located on a base 1, described heat-exchanger rig comprises shell-and-tube heat exchanger 2, plate type heat exchanger 3, temperature-sensing valve 4, circulating pump, small pump, valve, thermometer 9, pressure gauge 10, temperature sensor 11, pressure sensor 12, primary side heating agent enters shell-and-tube heat exchanger 2 through temperature-sensing valve 4 and carries out heat exchange for the first time, emit and enter again plate type heat exchanger 3 after a part of heat and carry out secondary heat exchange, discharge after again emitting heat; Secondary side water at low temperature is sent after circulating pump enters shell-and-tube heat exchanger 2 or plate type heat exchanger 3 heating, described temperature sensor 11 is located at secondary side outlet, it feeds back to control device 29 by temperature signal, thereby control device 29 is controlled temperature-sensing valve 4 and moved to regulate flow rate of heat medium to control secondary side leaving water temperature.Wherein shell-and-tube heat exchanger 2 is positioned at the upper strata of device, and described plate type heat exchanger 3 is located at the front left side of base 1, and described control device 29 is located at the right lateral side of base 1, and circulating pump, small pump are established in the middle part of base 1; Described circulating pump, the lower floor that small pump is positioned at device; The both sides, front and back in device middle level are respectively equipped with the first collecting pipe 13, the second collecting pipe 14.Described shell-and-tube heat exchanger 2, plate type heat exchanger 3 are equipped with primary side heat release pipe and secondary side endothermic tube, entrance point and the port of export of described shell-and-tube heat exchanger 2, the secondary side endothermic tube of plate type heat exchanger 3 are equipped with valve, shell-and-tube heat exchanger 2 secondary side endothermic tube imported valve imports communicate with the second collecting pipe 14 and form the first branch road with plate type heat exchanger 3 secondary side endothermic tube imported valve imports, and shell-and-tube heat exchanger 2 secondary side endothermic tube outlet valve outlets are connected to form the second branch road with plate type heat exchanger 3 secondary side endothermic tube outlet valve outlets by pipeline.Heat-exchanger rig is established the secondary side circulatory system, water charging system, the described secondary side circulatory system comprises recursive filter 24, the first circulating pump 5, the first check-valves 15, recursive filter 24 exports by valve and communicates with the first collecting pipe 13, the first circulating pump 5 imports communicate with the first collecting pipe 13 by valve, and the first check-valves 15 exports by valve and communicates with the second collecting pipe 14; Water charging system comprises the first moisturizing branch road, the first described moisturizing branch road comprises that the outlet of the first filter 25 of connecting successively by pipeline, the first stop valve 20, the first small pump 7, the second check-valves 16, the second stop valve 21, the second stop valves 21 communicates with the first collecting pipe 13.
For improving the reliability of system works, water charging system also comprises the second moisturizing branch road, the second described moisturizing branch road comprises that the port of export of the second filter 26 of connecting successively by pipeline, the 3rd stop valve 22, the second small pump 8, the 3rd check-valves 17, the 4th stop valve 23, the four stop valves 23 communicates with the first collecting pipe 13.The second moisturizing branch road of setting up, can be used as standbyly, improves the reliability of work.
For further improving the reliability of system works, convenient maintenance, the secondary side circulatory system also comprises the first circulation bypass, the 5th check-valves 19, the secondary side circulatory system also comprises the first circulation bypass, the first circulation bypass comprises that the second circulating pump 6 connecting successively by pipeline, the import of the 4th check-valves 18, the second circulating pumps 6 communicate with the first collecting pipe 13 by valve; The outlet of the 4th check-valves 18 communicates with the second collecting pipe 14 by valve.The import of the 5th check-valves 19 communicates with the first collecting pipe 13, and outlet communicates with the second collecting pipe 14; The import and export of described temperature-sensing valve 4 are equipped with valve.
For the ease of intuitive monitoring, improve the peaceful property of device, the first collecting pipe 13 is provided with pressure gauge 10 and thermometer 9, the second collecting pipes 14 are provided with safety valve 28, pressure gauge 10.
For ease of controlling precision, save the primary fluid energy, the first small pump 7, the second small pump 8, the first circulating pump 5, the second circulating pump 6 are the water pump by Frequency Converter Control, the input of frequency converter is connected with the output of control device 29.The outlet of device secondary side is provided with pressure gauge 10, thermometer 9, pressure sensor 12, temperature sensor 11, and described pressure sensor 12, the output of temperature sensor 11 are connected with the input of control device 29; Described plate type heat exchanger 3 primary side heat release outlets are provided with drain valve 27, the import and export of drain valve 27 are equipped with valve, between the outlet of the import of drain valve 27 imported valves and drain valve 27 outlet valves, by another valve, communicate, the outlet of device primary side is provided with pressure gauge 10 and thermometer 9.
A kind of heat exchange unit shown in above Fig. 1,2 is specific embodiments of the invention; substantive distinguishing features of the present invention and progress have been embodied; can be according to actual use needs; under enlightenment of the present invention; it is carried out to the equivalent modifications of the aspects such as shape, structure, all at the row of the protection domain of this programme.
Claims (10)
1. a heat exchange unit, comprise the control device (29) of heat-exchanger rig and the work of control heat-exchanger rig, it is characterized in that: described heat-exchanger rig is located on a base (1), described heat-exchanger rig comprises shell-and-tube heat exchanger (2), plate type heat exchanger (3), temperature-sensing valve (4), circulating pump, small pump, valve, thermometer (9), pressure gauge (10), temperature sensor (11), pressure sensor (12), primary side heating agent enters shell-and-tube heat exchanger (2) through temperature-sensing valve (4) and carries out heat exchange for the first time, emit and enter again plate type heat exchanger (3) after a part of heat and carry out secondary heat exchange, after again emitting heat, discharge, secondary side water at low temperature is sent after circulating pump enters shell-and-tube heat exchanger (2) or plate type heat exchanger (3) heating, described temperature sensor (11) is located at secondary side outlet, it feeds back to control device (29) by temperature signal, and temperature-sensing valve (4) controlled by control device (29) thereby action is to regulate flow rate of heat medium to control secondary side leaving water temperature.
2. a kind of heat exchange unit according to claim 1, it is characterized in that: described shell-and-tube heat exchanger (2) is positioned at the upper strata of device, described plate type heat exchanger (3) is located at the front left side of base (1), described control device (29) is located at the right lateral side of base (1), and circulating pump, small pump are established in the middle part of base (1); Described circulating pump, the lower floor that small pump is positioned at device; The both sides, front and back in device middle level are respectively equipped with the first collecting pipe (13), the second collecting pipe (14).
3. a kind of heat exchange unit according to claim 1 and 2, it is characterized in that: described shell-and-tube heat exchanger (2), plate type heat exchanger (3) is equipped with primary side heat release pipe and secondary side endothermic tube, described shell-and-tube heat exchanger (2), entrance point and the port of export of the secondary side endothermic tube of plate type heat exchanger (3) are equipped with valve, the import of shell-and-tube heat exchanger (2) secondary side endothermic tube imported valve communicates with the second collecting pipe (14) and forms the first branch road with the import of plate type heat exchanger (3) secondary side endothermic tube imported valve, the outlet of shell-and-tube heat exchanger (2) secondary side endothermic tube outlet valve is connected to form the second branch road with the outlet of plate type heat exchanger (3) secondary side endothermic tube outlet valve by pipeline.
4. a kind of heat exchange unit according to claim 3, it is characterized in that: heat-exchanger rig is established the secondary side circulatory system, water charging system, the described secondary side circulatory system comprises recursive filter (24), the first circulating pump (5), the first check-valves (15), recursive filter (24) outlet communicates with the first collecting pipe (13) by valve, the first circulating pump (5) import communicates with the first collecting pipe (13) by valve, and the first check-valves (15) outlet communicates with the second collecting pipe (14) by valve; Water charging system comprises the first moisturizing branch road, the first described moisturizing branch road comprises the first filter (25), the first stop valve (20), the first small pump (7), the second check-valves (16), the second stop valve (21) that by pipeline, connect successively, and the outlet of the second stop valve (21) communicates with the first collecting pipe (13).
5. a kind of heat exchange unit according to claim 4, it is characterized in that: water charging system also comprises the second moisturizing branch road, the second described moisturizing branch road comprises the second filter (26), the 3rd stop valve (22), the second small pump (8), the 3rd check-valves (17), the 4th stop valve (23) that by pipeline, connect successively, and the port of export of the 4th stop valve (23) communicates with the first collecting pipe (13).
6. a kind of heat exchange unit according to claim 5, it is characterized in that: the secondary side circulatory system also comprises the first circulation bypass, the first circulation bypass comprises the second circulating pump (6), the 4th check-valves (18) that by pipeline, connect successively, and the import of the second circulating pump (6) communicates with the first collecting pipe (13) by valve; The outlet of the 4th check-valves (18) communicates with the second collecting pipe (14) by valve.
7. a kind of heat exchange unit according to claim 6, is characterized in that: the secondary side circulatory system also comprises the 5th check-valves (19), and the import of the 5th check-valves (19) communicates with the first collecting pipe (13), and outlet communicates with the second collecting pipe (14); The import and export of described temperature-sensing valve (4) are equipped with valve.
8. a kind of heat exchange unit according to claim 7, is characterized in that: the first collecting pipe (13) is provided with pressure gauge (10) and thermometer (9), and the second collecting pipe (14) is provided with safety valve (28), pressure gauge (10).
9. a kind of heat exchange unit according to claim 8, it is characterized in that: the first small pump (7), the second small pump (8), the first circulating pump (5), the second circulating pump (6) are the water pump by Frequency Converter Control, and the input of frequency converter is connected with the output of control device (29).
10. a kind of heat exchange unit according to claim 1, it is characterized in that: the outlet of device secondary side is provided with pressure gauge (10), thermometer (9), pressure sensor (12), temperature sensor (11), and described pressure sensor (12), the output of temperature sensor (11) are connected with the input of control device (29); Described plate type heat exchanger (3) primary side heat release outlet is provided with drain valve (27), the import and export of drain valve (27) are equipped with valve, between the outlet of the import of drain valve (27) imported valve and drain valve (27) outlet valve, by another valve, communicate, the outlet of device primary side is provided with pressure gauge (10) and thermometer (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715123.9A CN103742965A (en) | 2013-12-20 | 2013-12-20 | Heat exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310715123.9A CN103742965A (en) | 2013-12-20 | 2013-12-20 | Heat exchange unit |
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| Publication Number | Publication Date |
|---|---|
| CN103742965A true CN103742965A (en) | 2014-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310715123.9A Pending CN103742965A (en) | 2013-12-20 | 2013-12-20 | Heat exchange unit |
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| Country | Link |
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| CN (1) | CN103742965A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142073A (en) * | 2014-07-31 | 2014-11-12 | 山东国舜压力容器有限公司 | Steam and water plate-type heat exchange unit |
| CN110243017A (en) * | 2019-07-17 | 2019-09-17 | 深圳市得益节能科技股份有限公司 | A kind of monoblock type heat exchange module unit |
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| CN203147904U (en) * | 2013-03-21 | 2013-08-21 | 石家庄航旭成套设备有限公司 | Remote control intelligent heat exchanger unit |
| CN203595166U (en) * | 2013-12-20 | 2014-05-14 | 罗林华 | Heat exchange unit |
| EP2868994A1 (en) * | 2012-05-10 | 2015-05-06 | Kyungdong Navien Co., Ltd. | Boiler having exhaust gas temperature control unit using temperature sensor and method for controlling same |
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| CN101576283A (en) * | 2009-06-11 | 2009-11-11 | 上海理工大学 | Water heater with heating-supply from transcritical carbon dioxide heat-pump |
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| EP2868994A1 (en) * | 2012-05-10 | 2015-05-06 | Kyungdong Navien Co., Ltd. | Boiler having exhaust gas temperature control unit using temperature sensor and method for controlling same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104142073A (en) * | 2014-07-31 | 2014-11-12 | 山东国舜压力容器有限公司 | Steam and water plate-type heat exchange unit |
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| CN110243017A (en) * | 2019-07-17 | 2019-09-17 | 深圳市得益节能科技股份有限公司 | A kind of monoblock type heat exchange module unit |
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Application publication date: 20140423 |
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