CN214172537U - Pure water constant temperature heating device - Google Patents
Pure water constant temperature heating device Download PDFInfo
- Publication number
- CN214172537U CN214172537U CN202023243754.XU CN202023243754U CN214172537U CN 214172537 U CN214172537 U CN 214172537U CN 202023243754 U CN202023243754 U CN 202023243754U CN 214172537 U CN214172537 U CN 214172537U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- water
- pipeline
- water tank
- outlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
A pure water constant temperature heating device includes: the device comprises a pressure reduction cooler, a primary plate type heat exchanger and a secondary plate type heat exchanger; the air inlet of the pressure reduction cooler is connected with a steam supply pipeline, the air outlet of the pressure reduction cooler is connected with the air inlet of the secondary plate heat exchanger through a first pipeline, and the air outlet of the secondary plate heat exchanger is connected with the air inlet of the primary plate heat exchanger through a second pipeline; the water inlet of the first-stage plate heat exchanger is connected with the water outlet of the cold pure water tank through a first water pump, the water outlet of the first-stage plate heat exchanger is connected with the water inlet of the second-stage plate heat exchanger through a third pipeline, and the water outlet of the second-stage plate heat exchanger is connected with the first hot water tank and the first water inlet at the top of the second hot water tank through fourth pipelines; the water outlet of the second hot water tank is connected with the water inlet of the first-stage plate heat exchanger through a circulating water pump. The protection of overpressure, overtemperature, power failure and water shortage is realized, and the long-term normal operation of the system can be ensured.
Description
Technical Field
The utility model belongs to the technical field of the pure water heating, concretely relates to pure water constant temperature heating device.
Background
The used pure water constant temperature heating system of current chemical industry production adopts plate heat exchanger heating more, and installation coil pipe keeps warm in the hot-water tank, and this system mainly has following defect: 1. the steam control precision is not high, so that steam leaks from the hot water tank and the condensed water tank, and the steam is wasted; 2. the mode of coil pipe heat preservation can consume excessive steam and increase equipment investment; 3. the automatic control system is simple, and has low control precision in the aspects of idle combustion prevention and constant temperature; 4. in the aspect of plate replacement protection, most chemical plants mostly adopt superheated steam, the high temperature and high pressure greatly damage the plate replacement gasket, and the service life of the plate replacement is shortened.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides a pure water constant temperature heating device.
The utility model discloses a realize through following technical scheme.
A pure water constant temperature heating device, characterized in that, the device includes: the device comprises a pressure reduction cooler (1), a primary plate type heat exchanger (2) and a secondary plate type heat exchanger (3); the air inlet of the pressure reduction cooler (1) is connected with the steam supply pipeline (4), the air outlet of the pressure reduction cooler (1) is connected with the air inlet of the secondary plate heat exchanger (3) through a first pipeline (12), and the air outlet of the secondary plate heat exchanger (3) is connected with the air inlet of the primary plate heat exchanger (2) through a second pipeline (13); a water inlet of the primary plate type heat exchanger (2) is connected with a water outlet of the cold pure water tank (5) through a first water pump (6), a water outlet of the primary plate type heat exchanger (2) is connected with a water inlet of the secondary plate type heat exchanger (3) through a third pipeline (14), and a water outlet of the secondary plate type heat exchanger (3) is connected with a first hot water tank (8) and a first water inlet at the top of a second hot water tank (9) through a fourth pipeline (15); and the water outlet of the second hot water tank (9) is connected with the water inlet of the first-stage plate type heat exchanger (2) through a circulating water pump (10).
Furthermore, the water outlet of the cold pure water tank (5) is connected with the water inlet of the pressure reduction cooler (1) through a second water pump (7), and the water outlet of the pressure reduction cooler (1) is connected with the second water inlet at the top of the first hot water tank (8) through a fifth pipeline (28).
Furthermore, a water outlet at the bottom of the side wall of the first hot water tank (8) is connected with a water inlet at the bottom of the side wall of the second hot water tank (9).
Furthermore, a condensed water outlet of the primary plate heat exchanger (2) is connected with a condensed water tank (11) through a sixth pipeline (29).
Furthermore, a first temperature switch valve (16) and a first temperature regulating valve (17) are arranged on the first pipeline (12), and a second temperature switch valve (18) and a second temperature regulating valve (19) are arranged on the second pipeline (13); a first temperature sensor (20) and a first pressure sensor (21) are arranged on the third pipeline (14), and a second temperature sensor (22) and a second pressure sensor (23) are arranged on the fourth pipeline (15); the first temperature sensor (20) is interlocked with a second temperature regulating valve (19), and the first pressure sensor (21) is interlocked with a second temperature switching valve (18); the second temperature sensor (22) is interlocked with the first temperature control valve (17), and the second pressure sensor (23) is interlocked with the first temperature switching valve (16).
Furthermore, the number of the cold pure water tanks (5) is two.
Furthermore, a liquid level indicating alarm (24) and a liquid level transmitter (25) are arranged on the cold pure water tank (5) and the first hot water tank (8).
Furthermore, a water outlet of the condensed water tank (11) is connected with a condensed water delivery pump (26).
Furthermore, a water outlet of the second hot water tank (9) is also connected with a hot water output pump (27).
Furthermore, the number of the circulating water pumps (10) is two.
The utility model has the advantages that the utility model provides a pure water constant temperature heating device, which realizes overpressure, overtemperature, power failure and water shortage protection and can ensure the long-term normal operation of the system; the heat preservation is realized through a circulating water pump: the investment of the coil pipe and the excessive consumption of steam can be reduced, and the temperature control precision is higher and can reach +/-0.5 ℃; and steam enters in a countercurrent mode, so that the steam utilization rate can be improved, and the steam discharge is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, a pure water constant temperature heating apparatus, characterized in that the apparatus comprises: the device comprises a pressure reduction cooler 1, a primary plate type heat exchanger 2 and a secondary plate type heat exchanger 3;
the air inlet of the pressure reduction cooler 1 is connected with the air outlet end of the steam air supply pipeline 4, the air inlet end of the steam air supply pipeline 4 is connected with a steam air supply device, and the steam air supply pipeline 4 is provided with a control valve; the gas outlet of the pressure reduction cooler 1 is connected with the gas inlet of the secondary plate heat exchanger 3 through a first pipeline 12, and the gas outlet of the secondary plate heat exchanger 3 is connected with the gas inlet of the primary plate heat exchanger 2 through a second pipeline 13;
a water inlet of the primary plate type heat exchanger 2 is connected with a water outlet of the cold pure water tank 5 through a first water pump 6, a water outlet of the primary plate type heat exchanger 2 is connected with a water inlet of the secondary plate type heat exchanger 3 through a third pipeline 14, and a water outlet of the secondary plate type heat exchanger 3 is connected with a first water inlet at the top of the first hot water tank 8 and a first water inlet at the top of the second hot water tank 9 through a fourth pipeline 15; the water outlet of the second hot water tank 9 is connected with the water inlet of the first-stage plate heat exchanger 2 through a circulating pipeline 30 by a circulating water pump 10.
Further, the water outlet of the cold pure water tank 5 is connected with the water inlet of the pressure reduction cooler 1 through a second water pump 7, and the water outlet of the pressure reduction cooler 1 is connected with the second water inlet at the top of the first hot water tank 8 through a fifth pipeline 28.
Further, a water outlet at the bottom of the side wall of the first hot water tank 8 is connected with a water inlet at the bottom of the side wall of the second hot water tank 9 through a straight pipe.
Further, a condensed water outlet of the primary plate heat exchanger 2 is connected with the condensed water tank 11 through a sixth pipeline 29.
Further, a first temperature switch valve 16 and a first temperature regulating valve 17 are arranged on the first pipeline 12, and a second temperature switch valve 18 and a second temperature regulating valve 19 are arranged on the second pipeline 13; a first temperature sensor 20 and a first pressure sensor 21 are arranged on the third pipeline 14, and a second temperature sensor 22 and a second pressure sensor 23 are arranged on the fourth pipeline 15; the first temperature sensor 20 is interlocked with the second temperature regulating valve 19, and the first pressure sensor 21 is interlocked with the second temperature switching valve 18; the second temperature sensor 22 is interlocked with the first temperature adjustment valve 17, and the second pressure sensor 23 is interlocked with the first temperature switch valve 16. And the first pipeline 12 and the second pipeline 13 are both provided with switch control valves.
Further, there are two cold pure water tanks 5. Wherein, the water outlet arranged at the bottom of the side wall of one cold pure water tank 5 is connected with the water inlet arranged at the bottom of the side wall of the other cold pure water tank 5 through a straight pipe.
Further, a liquid level indicating alarm 24 and a liquid level transmitter 25 are arranged on the cold pure water tank 5 and the first hot water tank 8.
Furthermore, a condensed water delivery pump 26 is connected to a water outlet of the condensed water tank 11 and delivers the condensed water to the shower room, and a control valve is arranged at the water outlet of the condensed water tank 11.
Further, the water outlet of the second hot water tank 9 is connected with a hot water output pump 27 for delivering to a user.
A control valve is arranged on a pipeline connecting the water outlet of the second hot water tank 9 with the circulating water pump 10, and a control valve is arranged on a pipeline connecting the water outlet of the second hot water tank 9 with the hot water output pump 27; the pipeline connecting the water outlet of the cold pure water tank 5 and the second water pump 7 is provided with a control valve, and the pipeline connecting the water outlet of the cold pure water tank 5 and the first water pump 6 is provided with a control valve.
Furthermore, two circulating water pumps 10 are provided, and the circulating water pumps are automatically rotated for 4 to 8 hours for one use and one standby, so that the circulation of a water system is not stopped.
When the water pump is used, firstly, the full water state of the system is confirmed when the water pump is started, and a water system starts to automatically run after a water pump button is started; when the steam coming from the power plant is 230 ℃ and the pressure is 0.7MPa, the steam is opened (closed) through a shutoff valve, the steam enters a pressure reduction cooler 1 through a steam supply pipeline 4, the steam pressure is immediately reduced to a set value (0.4MPa), the steam comes out of the pressure reduction cooler 1 and is 0.4MPa of saturated steam, the steam is 145 ℃, and the steam enters a plate type heat exchanger group to normally work; steam and cold pure water enter in a countercurrent mode, namely the steam enters from the secondary plate heat exchanger 3 after temperature and pressure reduction and then enters the primary plate heat exchanger 2, and condensed water is introduced into the condensed water tank 11; cold pure water enters from the primary plate heat exchanger 2, then enters the secondary plate heat exchanger 3, and then is introduced into the first hot water tank 8 and the second hot water tank 9; in order to make full use of the heat of the steam passing through the pressure-reducing cooler 1, the cold pure water enters the pressure-reducing cooler 1 through the second water pump 7 to exchange heat and then is introduced into the first hot water tank 8.
Heat preservation of a hot water tank: the water circulating system is automatically rotated for 4-8 hours by 2 circulating water pumps, so that the water circulating system is ensured not to stop circulating, the temperature control device comprises a first temperature sensor 20 and a second temperature adjusting valve 19 which are interlocked, and a second temperature sensor 22 and a first temperature adjusting valve 17 which are interlocked, so that the temperature is controlled, the measured temperature is matched with a set value, the temperature is kept constant at the set value, and the water using capacity of the system is met.
And (4) system protection measures: if the system is short of water, the circulating water pump immediately stops and the temperature control device and the pressure reducing constant pressure device (comprising the first pressure sensor 21 and the second temperature switch valve 18 which are interlocked, the second pressure sensor 23 and the first temperature switch valve 16) are all automatically powered off, the temperature control device and the pressure reducing constant pressure device simultaneously and immediately cut off steam (give an alarm sound), the temperature control device and the pressure reducing constant pressure device are interlocked and double-protected in a mutual response, and if the power failure happens, the steam is automatically cut off by control.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other modifications and equivalents may be made by those skilled in the art in light of the teachings of the present disclosure to achieve the same purpose, and should be construed as within the scope of the present disclosure.
Claims (10)
1. A pure water constant temperature heating device, characterized in that, the device includes: the device comprises a pressure reduction cooler (1), a primary plate type heat exchanger (2) and a secondary plate type heat exchanger (3); the air inlet of the pressure reduction cooler (1) is connected with the steam supply pipeline (4), the air outlet of the pressure reduction cooler (1) is connected with the air inlet of the secondary plate heat exchanger (3) through a first pipeline (12), and the air outlet of the secondary plate heat exchanger (3) is connected with the air inlet of the primary plate heat exchanger (2) through a second pipeline (13); a water inlet of the primary plate type heat exchanger (2) is connected with a water outlet of the cold pure water tank (5) through a first water pump (6), a water outlet of the primary plate type heat exchanger (2) is connected with a water inlet of the secondary plate type heat exchanger (3) through a third pipeline (14), and a water outlet of the secondary plate type heat exchanger (3) is connected with a first hot water tank (8) and a first water inlet at the top of a second hot water tank (9) through a fourth pipeline (15); and the water outlet of the second hot water tank (9) is connected with the water inlet of the first-stage plate type heat exchanger (2) through a circulating water pump (10).
2. The device according to claim 1, characterized in that the water outlet of the cold pure water tank (5) is further connected with the water inlet of the pressure-reducing cooler (1) through a second water pump (7), and the water outlet of the pressure-reducing cooler (1) is connected with the second water inlet at the top of the first hot water tank (8) through a fifth pipeline (28).
3. The device according to claim 1, characterized in that the outlet at the bottom of the side wall of the first hot water tank (8) is connected to the inlet at the bottom of the side wall of the second hot water tank (9).
4. The arrangement according to claim 1, characterized in that the condensate outlet of the primary plate heat exchanger (2) is connected to the condensate tank (11) by a sixth conduit (29).
5. The device according to claim 1, characterized in that a first temperature switch valve (16) and a first temperature regulating valve (17) are arranged on the first pipeline (12), and a second temperature switch valve (18) and a second temperature regulating valve (19) are arranged on the second pipeline (13); a first temperature sensor (20) and a first pressure sensor (21) are arranged on the third pipeline (14), and a second temperature sensor (22) and a second pressure sensor (23) are arranged on the fourth pipeline (15); the first temperature sensor (20) is interlocked with a second temperature regulating valve (19), and the first pressure sensor (21) is interlocked with a second temperature switching valve (18); the second temperature sensor (22) is interlocked with the first temperature control valve (17), and the second pressure sensor (23) is interlocked with the first temperature switching valve (16).
6. The device according to claim 1, characterized in that the number of cold plain water tanks (5) is two.
7. The device according to claim 1, characterized in that the cold pure water tank (5) and the first hot water tank (8) are provided with a level indicating alarm (24) and a level transmitter (25).
8. The device according to claim 4, characterized in that a condensate delivery pump (26) is connected to the outlet of the condensate tank (11).
9. The device according to claim 1, characterized in that the outlet of the second hot water tank (9) is also connected with a hot water output pump (27).
10. The device according to claim 1, characterized in that there are two circulating water pumps (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023243754.XU CN214172537U (en) | 2020-12-29 | 2020-12-29 | Pure water constant temperature heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023243754.XU CN214172537U (en) | 2020-12-29 | 2020-12-29 | Pure water constant temperature heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214172537U true CN214172537U (en) | 2021-09-10 |
Family
ID=77610443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023243754.XU Active CN214172537U (en) | 2020-12-29 | 2020-12-29 | Pure water constant temperature heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214172537U (en) |
-
2020
- 2020-12-29 CN CN202023243754.XU patent/CN214172537U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208765140U (en) | A kind of refrigeration system of winter low energy consumption | |
| CN108253643B (en) | Instant-heating heat-storage heat pump and solar energy coupling hot water system and control method | |
| CN111121288A (en) | Bathing water preparing system | |
| CN214581900U (en) | Air conditioner cold and heat source system for gas turbine power plant | |
| CN212481463U (en) | Heating and constant temperature bathroom water system | |
| CN214172537U (en) | Pure water constant temperature heating device | |
| CN202485278U (en) | Hot spring bathing pool heat energy recycling system | |
| CN109631140A (en) | Ocean nuclear power platform cabin heating system | |
| CN201983463U (en) | Directly-heated heat pump hot water system | |
| CN201779842U (en) | Energy-saving air source instant water heater | |
| CN212457060U (en) | Novel pressure-bearing type hot water system | |
| CN211260990U (en) | Steam heat transfer constant pressure water charging system | |
| CN210320247U (en) | Heating system | |
| CN211204210U (en) | Energy-conserving constant voltage stable form life hot water air source heat pump system | |
| CN209541161U (en) | A kind of heat pump heat distribution system preparing constant-temperature hot water | |
| CN109631142B (en) | Energy-saving and efficient gas central hot water optimization system | |
| CN209570361U (en) | A kind of Performance Test System of gas heater | |
| CN111879144A (en) | Dehumidification system based on comdenstion water | |
| CN204963054U (en) | Refrigerating system was retrieved to energy winter | |
| CN217763634U (en) | Anti-freezing plate heat exchange pipeline system | |
| CN204730316U (en) | A kind of hot water supply system | |
| CN216976894U (en) | Solar energy and gas combined water supply system | |
| CN221071036U (en) | Automatic temperature control device for cooling water cooling capacity of ozone generator | |
| CN215411835U (en) | Exhaust steam recovery energy-saving device of boiler deaerator | |
| CN212901722U (en) | Hot water making system by using waste heat of factory |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |