CN211575204U - Secondary net water replenishing preheating system of heat exchange station - Google Patents
Secondary net water replenishing preheating system of heat exchange station Download PDFInfo
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- CN211575204U CN211575204U CN202020229240.XU CN202020229240U CN211575204U CN 211575204 U CN211575204 U CN 211575204U CN 202020229240 U CN202020229240 U CN 202020229240U CN 211575204 U CN211575204 U CN 211575204U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 173
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000003020 moisturizing effect Effects 0.000 abstract description 12
- 239000013589 supplement Substances 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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Abstract
The utility model provides a heat transfer station secondary net moisturizing system of preheating, including the circulating pump, plate heat exchanger, double pipe heat exchanger and moisturizing pump, plate heat exchanger's high temperature water import is connected with a net delivery pipe, plate heat exchanger's high temperature water export is provided with a net wet return, a net wet return concatenates with double pipe heat exchanger, plate heat exchanger's low temperature water import is connected with the secondary net wet return, the secondary net moisturizing pipe link up with the secondary net wet return mutually, the secondary net moisturizing pipe concatenates with double pipe heat exchanger, plate heat exchanger's low temperature water export is connected with the secondary net delivery pipe, the circulating pump concatenates on the secondary net wet return, the moisturizing pump concatenates on the secondary net moisturizing pipe. The system preheats secondary net water supplement by utilizing the primary net water return, improves the temperature of the secondary net water return in the heat exchange station, thereby reducing the requirements for primary net water quantity and heat in the heat exchange station and further realizing the purpose of energy conservation of the heat exchange station.
Description
Technical Field
The utility model belongs to the technical field of the heat transfer station is energy-conserving, especially, relate to a heat transfer station secondary net moisturizing system of preheating.
Background
During central heating, when the secondary net has water leakage, the water quantity needs to be supplied to the secondary net in time in the heat exchange station. Because the temperature of the water supplement is far lower than the temperature of the secondary network return water, after the water supplement is injected into the secondary network return water pipe, the temperature of the secondary network return water can be lowered, and more primary network water and heat are consumed after the secondary network return water enters the plate heat exchanger, so that the energy-saving efficiency of the heat exchange station is directly influenced.
During central heating, the return water temperature of the primary network is about 45-50 ℃, the heat of the hot water of the primary network is not fully utilized, and the problem of how to fully utilize the heat in the return water of the primary network becomes urgent to solve on the premise of ensuring the heating quality.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a heat transfer station secondary net moisturizing system of preheating, this system utilize the primary net return water to preheat secondary net moisturizing, have improved secondary net return water temperature degree in the heat transfer station to reduced in the heat transfer station to primary net water yield and thermal demand, realized the energy-conserving purpose of heat transfer station then.
The utility model provides a technical scheme that its technical problem adopted is: a secondary net water-supplementing preheating system of a heat exchange station comprises a circulating pump, a plate heat exchanger, a sleeve heat exchanger and a water-supplementing pump, wherein a high-temperature water inlet of the plate heat exchanger is connected with a primary net water supply pipe, a high-temperature water outlet of the plate heat exchanger is provided with a primary net water return pipe, high-temperature water in the primary net water return pipe is heated again through the sleeve heat exchanger and then flows back into the primary net water return pipe, a low-temperature water inlet of the plate heat exchanger is connected with a secondary net water return pipe, the secondary net water-supplementing pipe is communicated with the secondary net water return pipe, low-temperature water in the secondary net water-supplementing pipe is heated in the sleeve heat exchanger and then flows into the secondary net water return pipe, a low-temperature water outlet of the plate heat exchanger is connected with the secondary net water supply pipe, the circulating pump is connected in series with the secondary net water return, and the water replenishing pump is connected in series with the secondary net water replenishing pipe.
Preferably, the primary network water return pipe comprises a primary network first water return pipe and a primary network second water return pipe, the primary network first water return pipe is connected with a high-temperature water inlet of the sleeve pipe heat exchanger, a high-temperature water outlet of the sleeve pipe heat exchanger is connected with the primary network second water return pipe, the secondary network water supply pipe comprises a secondary network first water supply pipe and a secondary network second water supply pipe, a low-temperature water outlet of the sleeve pipe heat exchanger is communicated with the secondary network water return pipe through the secondary network first water supply pipe, a low-temperature water inlet of the sleeve pipe heat exchanger is connected with the secondary network second water supply pipe, and the water supply pump is arranged on the secondary network second water supply pipe.
Further, the double-pipe heat exchanger comprises an inner pipe and an outer pipe, the inner pipe is sleeved in the outer pipe, the inner pipe and the outer pipe are S-shaped, the two ends of the inner pipe are respectively a low-temperature water inlet and a low-temperature water outlet of the double-pipe heat exchanger, the high-temperature water inlet of the double-pipe heat exchanger arranged on the outer pipe is adjacent to the low-temperature water outlet of the double-pipe heat exchanger, the high-temperature water outlet of the double-pipe heat exchanger arranged on the outer pipe is adjacent to the low-temperature water inlet of the double-pipe heat exchanger, and the two ends of the outer pipe are.
Further, the outer side wall of the inner pipe is isolated from the inner side wall of the outer pipe through a round pipe or round steel.
Further, in the radial section of the inner pipe, the included angle between the axes of the adjacent round pipes or round steel is 90 degrees.
Furthermore, the end parts of two adjacent linear inner pipes are communicated through a 180-degree inner elbow, and the end parts of two adjacent linear outer pipes are communicated through a reducing joint and a 180-degree outer elbow.
The utility model has the advantages that: the utility model has simple structure and convenient use; the system preheats the secondary net water supply by using the waste heat of the primary net water return, and then improves the temperature of the secondary net water return in the heat exchange station, thereby reducing the requirements of the plate heat exchanger in the heat exchange station on the water quantity and heat of the primary net and further realizing the energy-saving purpose of the heat exchange station; primary network return water and secondary network moisturizing adopt the mode of flowing against the other way to carry out heat exchange in double pipe heat exchanger, and the inner tube cover in the double pipe heat exchanger is put in the outer tube, and inner tube and outer tube all are S-shaped and distribute, reduces double pipe heat exchanger installation dimension then by a wide margin, adopts pipe or round steel to keep apart between inner tube and the outer tube, does benefit to the clearance of guaranteeing between inner tube and the outer tube stable, provides the guarantee for the heat exchange between inner tube and the outer tube.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structure principle of the present invention;
FIG. 2 is a schematic structural diagram of a first embodiment of a double-tube heat exchanger;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic view of the distribution of round tubes between the inner and outer tubes;
in the figure: 1 circulating pump, 2 plate heat exchangers, 3 sleeve heat exchangers, 4 water replenishing pumps, 5 outer pipes, high-temperature water inlets of 51 sleeve heat exchangers, high-temperature water outlets of 52 sleeve heat exchangers, 6 inner pipes, low-temperature water inlets of 61 sleeve heat exchangers, low-temperature water outlets of 62 sleeve heat exchangers, 7 reducing joints, 8180-degree outer elbows, 9180-degree inner elbows, 10 round pipes, 102 secondary net water return pipes, 103 secondary net water supply pipes, 202 primary net water supply pipes, 203 primary net second water return pipes, 204 primary net first water return pipes, 302 secondary net second water replenishing pipes, 303 secondary net first water replenishing pipes, 501 ball valves, 502 pressure transmitters, 503, pressure gauges 504, 505 temperature transmitters, 507 calorimeters, 508 flow meters, 509 check valves, 510 check valves 601, electric regulating valves, 602, 603Y-type filters and 604 safety valves.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following specific embodiments and accompanying drawings 1-4, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar variations without departing from the spirit of the invention, and therefore the invention is not limited by the specific embodiments disclosed below.
The utility model provides a heat exchange station secondary network moisturizing system of preheating (as shown in figure 1), including circulating pump 1, plate heat exchanger 2, double-pipe heat exchanger 3 and moisturizing pump 4, the high temperature water inlet of plate heat exchanger 2 is connected with once net delivery pipe 202, the high temperature water outlet of plate heat exchanger 2 is provided with once net wet return, the high temperature water in once net wet return flows back in once net water supply system after releasing heat once more through double-pipe heat exchanger 3, the low temperature water inlet of plate heat exchanger 2 is connected with secondary net wet return 102, and secondary net wet return is linked up with secondary net wet return 102 mutually, and the low temperature water in secondary net wet return flows into secondary net wet return 102 after being heated in double-pipe heat exchanger 3, the low temperature water outlet of plate heat exchanger 2 is connected with secondary net delivery pipe 103, circulating pump 1 concatenates on secondary net wet return 102, and the circulating pump 1 is located at the downstream of the connection of the secondary network water supply pipe and the secondary network water return pipe 102, the circulation of water flow in the secondary network water supply system is realized through the circulating pump 1, the water replenishing pump 4 is connected in series on the secondary network water supply pipe, the auxiliary water flow enters into the secondary network water supply system through the water replenishing pump 4, in the specific embodiment, the primary network water return pipe comprises a primary network first water return pipe 204 and a primary network second water return pipe 302, the primary network first water return pipe 204 is connected with the high-temperature water inlet 51 of the double-pipe heat exchanger, the high-temperature water outlet 52 of the double-pipe heat exchanger is connected with the primary network second water return pipe 302, the secondary network water supply pipe comprises a secondary network first water supply pipe 303 and a secondary network second water supply pipe 302, the low-temperature water outlet 62 of the double-pipe heat exchanger is communicated with the secondary network water return pipe 102 through the secondary network first water supply pipe 303, the low-temperature water inlet 61 of the double-pipe heat exchanger is connected with a secondary network second water replenishing pipe 302, and the water replenishing pump 4 is arranged on the secondary network second water replenishing pipe 302.
In this embodiment, the specific implementation of the double-pipe heat exchanger 3 is as follows: the double-pipe heat exchanger 3 comprises an inner pipe 6 and an outer pipe 5 (as shown in fig. 2), the inner pipe 6 is sleeved in the outer pipe 5, the inner pipe 6 and the outer pipe 5 are in an S shape, two ends of the inner pipe 6 are respectively a low-temperature water inlet 62 and a low-temperature water outlet 61 of the double-pipe heat exchanger, a high-temperature water inlet 51 of the double-pipe heat exchanger arranged on the outer pipe 5 is adjacent to the low-temperature water outlet 61 of the double-pipe heat exchanger, a high-temperature water outlet 52 of the double-pipe heat exchanger arranged on the outer pipe 5 is adjacent to the low-temperature water inlet 62 of the double-pipe heat exchanger, two ends of the outer pipe 5 are connected with the outer side wall of the inner pipe 6 in a sealing manner, the outer side wall of the inner pipe 6 is isolated from the inner side wall of the outer pipe 5 through a circular pipe 10 or a round steel, specifically, in the radial section of the inner pipe 6, the included angle, as shown in fig. 3, the inner pipe 6 is bent by a 180 ° inner bend 9, the outer pipe 5 is bent by two reducing joints 7 and a 180 ° outer bend 8, and the specific embodiment is: the end parts of two adjacent linear inner pipes 6 are communicated through a 180-degree inner elbow 9, and the end parts of two adjacent linear outer pipes 5 are communicated through a reducing joint 7 and a 180-degree outer elbow 8.
In practical application, for convenience of the utility model discloses a smooth steady operation, here two ball valves 501 and a Y type filter 603 have been concatenated on the once net delivery pipe 202, Y type filter 603 is located between two ball valves 501, on the once net delivery pipe 202 between plate heat exchanger 2 and Y type filter 603, set up one with corresponding the electrical control valve 601 that ball valve 501 connects in parallel mutually, and set up a butterfly valve 602 respectively at the both ends of electrical control valve 601, be provided with manometer 503, thermometer 504, temperature transmitter 505 and pressure transmitter 502 on the once net delivery pipe 202 between Y type filter 603 and the ball valve 501 of keeping away from plate heat exchanger 2, a ball valve 501, a manometer 501 have been concatenated on the once net once return water pipe 204, have concatenated on once net secondary return water pipe 203 and calorimeter 507, be provided with manometer 503 on the once net second return water 203 between ball valve 501 and calorimeter 507, The temperature measuring device comprises a temperature gauge 504, a temperature transmitter 505 and a pressure transmitter 502, wherein a ball valve 501 is connected on the secondary network first water supplementing pipe 303 in series, the secondary network first water supplementing pipe 303 is further provided with the temperature gauge 504 and the temperature transmitter 505, a check valve 510, a stop valve 509 and a flow meter 508 which are positioned at the downstream of the water supplementing pump 4 are connected on the secondary network second water supplementing pipe 302 in series in sequence, a pressure gauge 503, the temperature gauge 504, the temperature transmitter 505, the pressure transmitter 502 and a safety valve 604 which are positioned at the upstream of the circulating pump 1 are arranged on the secondary network water returning pipe 102, the ball valve 501 and the flow meter 508 are connected on the secondary network water supply pipe 103 in series, and the pressure gauge, the temperature gauge 504, the temperature transmitter 505 and the pressure transmitter 502 which are positioned between the ball valve 501.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
The above description is provided for the preferred embodiments and examples of the present invention with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and these modifications and variations should be construed as the protection scope of the present invention.
Claims (6)
1. A secondary net water-supplementing preheating system of a heat exchange station is characterized by comprising a circulating pump, a plate heat exchanger, a sleeve heat exchanger and a water-supplementing pump, wherein a high-temperature water inlet of the plate heat exchanger is connected with a primary net water supply pipe, a high-temperature water outlet of the plate heat exchanger is provided with a primary net water return pipe, high-temperature water in the primary net water return pipe is heated again through the sleeve heat exchanger and then flows back into the primary net water return pipe, a low-temperature water inlet of the plate heat exchanger is connected with a secondary net water return pipe, the secondary net water-supplementing pipe is communicated with the secondary net water return pipe, low-temperature water in the secondary net water-supplementing pipe is heated in the sleeve heat exchanger and then flows into the secondary net water return pipe, a low-temperature water outlet of the plate heat exchanger is connected with the secondary net water supply pipe, the circulating pump is connected in series with the secondary net water, and the water replenishing pump is connected in series with the secondary net water replenishing pipe.
2. The system of claim 1, wherein the primary-network water return pipe comprises a primary-network first water return pipe and a primary-network second water return pipe, the primary-network first water return pipe is connected with the high-temperature water inlet of the double-pipe heat exchanger, the high-temperature water outlet of the double-pipe heat exchanger is connected with the primary-network second water return pipe, the secondary-network water return pipe comprises a secondary-network first water supply pipe and a secondary-network second water supply pipe, the low-temperature water outlet of the double-pipe heat exchanger is communicated with the secondary-network water return pipe through the secondary-network first water supply pipe, the low-temperature water inlet of the double-pipe heat exchanger is connected with the secondary-network second water supply pipe, and the water supply pump is arranged on the secondary-network second water supply pipe.
3. The system of claim 2, wherein the double-pipe heat exchanger comprises an inner pipe and an outer pipe, the inner pipe is sleeved in the outer pipe, the inner pipe and the outer pipe are in an S shape, the two ends of the inner pipe are respectively a low-temperature water inlet and a low-temperature water outlet of the double-pipe heat exchanger, the high-temperature water inlet of the double-pipe heat exchanger arranged on the outer pipe is adjacent to the low-temperature water outlet of the double-pipe heat exchanger, the high-temperature water outlet of the double-pipe heat exchanger arranged on the outer pipe is adjacent to the low-temperature water inlet of the double-pipe heat exchanger, and the two ends of the outer pipe are connected with the outer side wall of the inner.
4. The heat exchange station secondary net water replenishing preheating system of claim 3, wherein the outer side wall of the inner pipe and the inner side wall of the outer pipe are isolated by round pipes or round steel.
5. The heat exchange station secondary net water replenishing preheating system of claim 4, wherein an included angle between axes of adjacent round tubes or round bars in a radial section of the inner tube is 90 °.
6. The heat exchange station secondary net water replenishing and preheating system of claim 3, wherein the end portions of two adjacent linear inner pipes are communicated through a 180-degree inner elbow, and the end portions of two adjacent linear outer pipes are communicated through a reducing joint and a 180-degree outer elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020229240.XU CN211575204U (en) | 2020-02-29 | 2020-02-29 | Secondary net water replenishing preheating system of heat exchange station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020229240.XU CN211575204U (en) | 2020-02-29 | 2020-02-29 | Secondary net water replenishing preheating system of heat exchange station |
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| CN211575204U true CN211575204U (en) | 2020-09-25 |
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| CN202020229240.XU Expired - Fee Related CN211575204U (en) | 2020-02-29 | 2020-02-29 | Secondary net water replenishing preheating system of heat exchange station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102630A (en) * | 2020-02-29 | 2020-05-05 | 临沂市新城热力有限公司 | Secondary net water replenishing preheating system of heat exchange station |
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2020
- 2020-02-29 CN CN202020229240.XU patent/CN211575204U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102630A (en) * | 2020-02-29 | 2020-05-05 | 临沂市新城热力有限公司 | Secondary net water replenishing preheating system of heat exchange station |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200925 |
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| CF01 | Termination of patent right due to non-payment of annual fee |