CN214038972U - Exhaust steam water heater - Google Patents
Exhaust steam water heater Download PDFInfo
- Publication number
- CN214038972U CN214038972U CN202022950020.9U CN202022950020U CN214038972U CN 214038972 U CN214038972 U CN 214038972U CN 202022950020 U CN202022950020 U CN 202022950020U CN 214038972 U CN214038972 U CN 214038972U
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- heat exchange
- pressure
- water
- steam
- water tank
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 203
- 239000002699 waste material Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 5
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 5
- 238000004321 preservation Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000010865 sewage Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 238000010793 Steam injection (oil industry) Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an exhaust steam water heater, include: the pressure-bearing water tank is provided with a heat insulation layer, the bottom of the pressure-bearing water tank is provided with a cold water inlet, and the upper part of the pressure-bearing water tank is provided with a hot water outlet; the steam-water heat exchanger is arranged at the inner lower part of the pressure-bearing water tank, the steam-water heat exchanger is provided with a heat exchange cavity, a plurality of heat exchange tubes are arranged in the heat exchange cavity, two ends of each heat exchange tube are respectively communicated with the pressure-bearing water tank, and the upper end and the lower end of the heat exchange cavity are respectively provided with an inlet and an outlet; the exhaust steam inlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the inlet of the heat exchange cavity; the condensed water outlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the outlet of the heat exchange cavity; and the waste steam enters the heat exchange cavity from the waste steam inlet and flows out from the condensed water outlet, and the water in the pressure-bearing water tank enters the heat exchange pipe and exchanges heat with the waste steam through the heat exchange pipe. The water heater can solve the problem of exhaust steam waste heat recovery caused by low discharge amount, low pressure, continuity or discontinuity, and achieves the effects of energy conservation, emission reduction and white pollution reduction.
Description
Technical Field
The utility model belongs to the technical field of waste heat recovery, especially, relate to an exhaust steam water heater.
Background
Steam is widely used in various factories as a heating medium, a power source, humidification, sterilization, and the like. In the process of conveying steam by using a pipeline, condensate water at the low point of the pipeline needs to be discharged by using a drain valve, after the pressure of high-temperature condensate water is released, the temperature is reduced to 100 ℃, and meanwhile, heat is released by exhaust steam; in addition, after the steam is used for heating the material with the temperature exceeding 100 ℃, the temperature of condensed water discharged through the steam trap exceeds 100 ℃, and dead steam is also generated. Because of the small amount of the exhausted steam and the low pressure, a large amount of heat contained in the exhausted steam is difficult to recycle. Therefore, many industrial enterprises using steam have the situations that dead steam is directly discharged to atmosphere and energy is wasted in a large amount.
At present, the following technologies are mainly used for the relatively mature low-pressure exhaust steam: A. the steam injection technology is characterized in that high-pressure steam generates a pumping effect when passing through a Venturi tube, and exhaust steam is pumped into and mixed to be changed into low-pressure steam for factories to use; B. the water spraying and mixing technology is characterized in that exhaust steam is introduced into a mixing tank, low-temperature water is pumped into the mixing tank by a pump, the low-temperature water is mixed with the exhaust steam in the mixing tank in a spraying mode, and the heat of the exhaust steam is absorbed and changed into high-temperature water to recover heat; C. in the lithium bromide refrigeration technology, dead steam is introduced into a lithium bromide unit to generate chilled water with the temperature lower than 10 ℃ for production of a factory or an air conditioning system.
The existing exhaust steam waste heat utilization technology in the prior art generally has the problems of complex equipment, high investment cost and significance for continuous exhaust steam generation units above 500 Kg/h. In addition to the disadvantages that are common, the prior art has the following disadvantages: A. the steam injection technology needs high-pressure steam of more than 1Mpa, and also needs stable use requirements of the steam of 0.2-0.3 Mpa; B. the water spraying and mixing technology utilizes the direct mixing of water and exhaust steam to absorb the heat of the steam, needs an additional water circulating pump and has higher operating cost. In addition, steam is mixed in the water, and the water cannot be directly used for showering and washing hands; C. the lithium bromide refrigeration technology requires that the factory has the requirement of chilled water and the amount of dead steam is large and stable.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model aims at providing an exhaust steam water heater, this water heater can solve the exhaust steam waste heat recovery problem that the emission is not big, pressure is low, produce in succession or discontinuity, reach energy saving and emission reduction, reduce white pollution's effect.
In order to achieve the above purpose, the technical scheme of the utility model is that:
an exhaust steam water heater comprising:
the pressure-bearing water tank is provided with a heat insulation layer, the bottom of the pressure-bearing water tank is provided with a cold water inlet, and the upper part of the pressure-bearing water tank is provided with a hot water outlet;
the steam-water heat exchanger is arranged at the inner lower part of the pressure-bearing water tank, the steam-water heat exchanger is provided with a heat exchange cavity, a plurality of heat exchange tubes are arranged in the heat exchange cavity, two ends of each heat exchange tube are respectively communicated with the pressure-bearing water tank, and the upper end and the lower end of the heat exchange cavity are respectively provided with an inlet and an outlet;
the exhaust steam inlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the inlet of the heat exchange cavity;
the condensed water outlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the outlet of the heat exchange cavity;
and the waste steam enters the heat exchange cavity from the waste steam inlet and flows out from the condensed water outlet, and the water in the pressure-bearing water tank enters the heat exchange pipe and exchanges heat with the waste steam through the heat exchange pipe.
According to the utility model discloses an embodiment, the vertical setting of heat exchange tube.
According to the utility model discloses an embodiment, the heat exchange tube is equipped with the fin.
According to the utility model discloses an embodiment, the pressure-bearing water tank includes last box and lower box with the water pipe intercommunication, the hot water export is located go up the box, cold water inlet with soda heat exchanger locates box down.
According to the utility model discloses an embodiment, the pressure-bearing water tank is equipped with the thermometer.
According to the utility model discloses an embodiment, the pressure-bearing water tank is equipped with the magnesium stick.
According to the utility model discloses an embodiment, the pressure-bearing water tank is equipped with the relief valve.
According to the utility model discloses an embodiment, pressure-bearing water tank bottom is equipped with the drain.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:
(1) the embodiment of the utility model provides an in set up pressure-bearing water tank, soda heat exchanger. The steam-water heat exchanger is internally provided with a heat exchange cavity, a plurality of heat exchange tubes are arranged in the heat exchange cavity, exhaust steam enters the heat exchange cavity from an exhaust steam inlet and flows out from a condensate water outlet, water enters the heat exchange tubes and exchanges heat with the exhaust steam through the heat exchange tubes to realize the heating of the water, and the exhaust steam flows through the whole heat exchange cavity during heat exchange, so that a flow channel of the steam-water heat exchanger is large, the resistance is small, the exhaust steam can smoothly flow into the steam-water heat exchanger and circulate in the steam-water heat exchanger, and the circulation is not smooth if the flow channel is too small because the pressure of the exhaust steam is low.
(2) The embodiment of the utility model provides an in the vertical setting of heat exchange tube, the heat exchange efficiency who makes exhaust steam and water is higher.
(3) The embodiment of the utility model provides an in lower part in the pressure-bearing water tank is established to soda heat exchanger, and the water of pressure-bearing water tank bottom passes through the soda heat exchanger heat transfer, makes its temperature rise, density diminish to rise to the upper portion of pressure-bearing water tank, the water density that the temperature is low is big and to the motion of pressure-bearing water tank lower part, all water in the hydrologic cycle flow is in order to heat the pressure-bearing water tank.
(4) The embodiment of the utility model provides an in the pressure-bearing water tank is equipped with the heat preservation and passes through when the exhaust steam passes through, water in the pressure-bearing water tank passes through the heat that steam-water heat exchanger absorbed the exhaust steam, when not having the exhaust steam, water in the pressure-bearing water tank is because the effect of heat preservation, the temperature remains unchanged basically, can adapt to on a large scale and intermittent change of exhaust steam volume, can continuously provide when the terminal needs hot water, when the terminal does not need hot water, also can continuously absorb the heat of exhaust steam and improve the temperature, the exhaust steam supply is used in step with hot water completely not required, the scene greatly increased that makes it adapt to.
Drawings
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:
fig. 1 is the overall schematic diagram of the exhaust-steam water heater of the present invention.
Description of reference numerals:
1: a pressure-bearing water tank; 2: a steam-water heat exchanger; 3: a dead steam inlet; 4: a condensed water outlet; 5: a cold water inlet; 6: a hot water outlet; 7: a sewage draining outlet; 8: a thermometer mounting port; 9: a magnesium rod mounting port; 10: a pressure relief valve; 11: a heat exchange cavity; 12: a heat exchange pipe; 13: and a fin.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
Referring to fig. 1, the core of the utility model is to provide an exhaust steam water heater, which mainly comprises a pressure-bearing water tank 1 and a steam-water heat exchanger 2. The pressure-bearing water tank 1 is provided with a heat-insulating layer, the bottom of the pressure-bearing water tank 1 is provided with a cold water inlet 5, and the top of the pressure-bearing water tank 1 is provided with a hot water outlet 6; the steam-water heat exchanger 2 is arranged at the inner lower part of the pressure-bearing water tank 1, the steam-water heat exchanger 2 is provided with a heat exchange cavity 11, a plurality of heat exchange tubes 12 are arranged in the heat exchange cavity 11, two ends of each heat exchange tube 12 are respectively communicated with the pressure-bearing water tank 1, and the upper end and the lower end of the heat exchange cavity 11 are respectively provided with an inlet and an outlet; the exhaust steam inlet 3 is arranged on the side wall of the pressure-bearing water tank 1 and is communicated with an inlet of the heat exchange cavity 11; the condensed water outlet 4 is arranged on the side wall of the pressure-bearing water tank 1 and is communicated with the outlet of the heat exchange cavity 11.
The exhaust steam enters the heat exchange cavity 11 from the exhaust steam inlet 3 and flows out from the condensed water outlet 4, and the water in the pressure-bearing water tank 1 enters the heat exchange pipe 12 and exchanges heat with the exhaust steam through the heat exchange pipe to heat the water.
When the exhaust steam is used for heat exchange, the exhaust steam flows through the whole heat exchange cavity 11, so that the flow channel is large, the resistance is small, the low-pressure exhaust steam can flow into the steam-water heat exchanger 2 smoothly and can circulate in the steam-water heat exchanger, and the exhaust steam cannot circulate if the flow channel is too small because the pressure of the exhaust steam is low.
The exhaust steam water heater of the present invention is explained in detail as follows:
the pressure-bearing water tank 1 is of a cylindrical structure and is provided with a heat preservation layer for heat preservation. The bottom of the pressure-bearing water tank 1 is provided with a cold water inlet 5 for introducing cold water and a sewage discharge outlet 7 for discharging sewage, and the position of the cold water inlet 5 is lower than the position of the condensed water outlet 4. The top of the pressure-bearing water tank 1 is provided with a hot water outlet 6 for heated water, a thermometer for measuring water temperature, a magnesium rod with an anti-corrosion effect and a pressure release valve 10 for preventing overpressure. Specifically, referring to fig. 1, the thermometer is mounted on the pressure-bearing water tank 1 through a thermometer mounting port 8, and the magnesium rod is mounted on the pressure-bearing water tank 1 through a magnesium rod mounting port 9.
If the water heater is used for supplying hot water, the cold water inlet 5 can work only by using the pressure of tap water, an additional pump is not needed for providing power, the operation cost is low, and the maintenance is simple.
The steam-water heat exchanger 2 and the pressure-bearing water tank 1 are made into an integrated structure, the sizes of the pressure-bearing water tank 1 and the steam-water heat exchanger 2 can be flexibly designed according to the maximum steam exhaust amount, and the steam exhaust amount can be effectively recovered from 10Kg/h to 1000 Kg/h.
In the embodiment, a plurality of heat exchange tubes 12 in a heat exchange cavity 11 in the steam-water heat exchanger 2 are vertically arranged, the upper ends and the lower ends of the heat exchange tubes 12 are respectively communicated with the pressure-bearing water tank 1, and water in the pressure-bearing water tank 1 enters the heat exchange tubes 12 to realize heat exchange. The vertical setting is favorable to the flow of water, because the water of pressure-bearing water tank 1 bottom passes through the heat transfer of soda heat exchanger 2, makes its temperature rise, density diminish to rise to the upper portion of pressure-bearing water tank 1 through heat exchange tube 12, the low water density of temperature is big and to the motion of pressure-bearing water tank 1 lower part, vertical setting makes the flow stroke of water minimum, is favorable to the water circulation to flow, in order to realize rapid heating.
Preferably, the heat exchange tube 12 is provided with the fins 13, and the exhaust steam can exchange heat with water in the heat exchange tube 12 after flowing through the fins 13, so that the heat exchange area is increased, and the heat exchange efficiency of the exhaust steam is improved. That is, the heat exchange tubes may be finned tubes, light pipes, etc.
In other embodiments, the pressure-bearing water tank 1 can be a split structure and comprises an upper tank body and a lower tank body which are communicated by a water pipe, the upper tank body is provided with a hot water outlet 6, a magnesium rod, a thermometer and a pressure release valve 10, and the lower tank body is provided with a cold water inlet 5, an exhaust steam inlet 3, a condensed water outlet 4, a drain outlet 7 and a steam-water heat exchanger 2.
The working process of the present invention is further explained as follows:
sufficient water is introduced into the pressure-bearing water tank 1 through the cold water inlet 5, then the exhaust steam is introduced into the heat exchange cavity 11 of the steam-water heat exchanger 2 through the exhaust steam inlet 3, the exhaust steam flows in the heat exchange cavity 11, the exhaust steam and the water in the heat exchange tube 12 generate heat exchange when flowing through the outer side of the heat exchange tube 12 and the fins 13 of the heat exchange tube 12, the water is heated, the water density after heating is reduced, the exhaust steam rises to the upper part of the pressure-bearing water tank 1 through the heat exchange tube 12, the hot water obtained by heating flows out through the hot water outlet 6, and the exhaust steam after heat exchange and heat release is condensed into water and flows out from the condensed water outlet 4.
When hot water is not output, the temperature of water in the pressure-bearing water tank 1 can be continuously increased by the exhaust steam in a convection heat transfer mode; when no steam exhaust exists, the hot water stored in the pressure-bearing water tank 1 can be continuously supplied to the outside.
The utility model discloses mainly solve the emission and not big (10 ~ 1000Kg/h), produce the waste heat recovery problem of exhaust steam in succession or discontinuously, the heat of exhaust steam is used for the production heating through indirect heat transfer with water, obtains the hot water, shower, the room heating of washing hand and winter. In most cases, the amount of the dead steam is small, but the energy is huge, and the latent heat of condensation of 1Kg of dead steam is equivalent to the heat of 0.6 KWh. Therefore, the energy-saving benefit of recovering a small amount of dead steam is also very considerable.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.
Claims (8)
1. An exhaust steam water heater, comprising:
the pressure-bearing water tank is provided with a heat insulation layer, the bottom of the pressure-bearing water tank is provided with a cold water inlet, and the upper part of the pressure-bearing water tank is provided with a hot water outlet;
the steam-water heat exchanger is arranged at the inner lower part of the pressure-bearing water tank, the steam-water heat exchanger is provided with a heat exchange cavity, a plurality of heat exchange tubes are arranged in the heat exchange cavity, two ends of each heat exchange tube are respectively communicated with the pressure-bearing water tank, and the upper end and the lower end of the heat exchange cavity are respectively provided with an inlet and an outlet;
the exhaust steam inlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the inlet of the heat exchange cavity;
the condensed water outlet is arranged on the side wall of the pressure-bearing water tank and is communicated with the outlet of the heat exchange cavity;
and the waste steam enters the heat exchange cavity from the waste steam inlet and flows out from the condensed water outlet, and the water in the pressure-bearing water tank enters the heat exchange pipe and exchanges heat with the waste steam through the heat exchange pipe.
2. The dead steam water heater of claim 1 wherein the heat exchange tube is vertically disposed.
3. The dead steam water heater of claim 1 wherein the heat exchange tube is finned.
4. The dead-steam water heater according to claim 1, wherein the pressure-bearing water tank comprises an upper tank body and a lower tank body which are communicated by a water pipe, the hot water outlet is arranged on the upper tank body, and the cold water inlet and the steam-water heat exchanger are arranged on the lower tank body.
5. The dead steam water heater of claim 1, wherein the pressurized water tank is provided with a thermometer.
6. The dead steam water heater of claim 1, wherein the pressurized water tank is provided with a magnesium rod.
7. The dead-steam water heater of claim 1 wherein the pressurized water tank is provided with a pressure relief valve.
8. The dead steam water heater of claim 1, wherein a drain outlet is formed at the bottom of the pressure-bearing water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022950020.9U CN214038972U (en) | 2020-12-11 | 2020-12-11 | Exhaust steam water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022950020.9U CN214038972U (en) | 2020-12-11 | 2020-12-11 | Exhaust steam water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214038972U true CN214038972U (en) | 2021-08-24 |
Family
ID=77334938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022950020.9U Expired - Fee Related CN214038972U (en) | 2020-12-11 | 2020-12-11 | Exhaust steam water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214038972U (en) |
-
2020
- 2020-12-11 CN CN202022950020.9U patent/CN214038972U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210824 |
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| CF01 | Termination of patent right due to non-payment of annual fee |