CN109405044B - Integrated mobile heat source equipment - Google Patents
Integrated mobile heat source equipment Download PDFInfo
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- CN109405044B CN109405044B CN201811330113.2A CN201811330113A CN109405044B CN 109405044 B CN109405044 B CN 109405044B CN 201811330113 A CN201811330113 A CN 201811330113A CN 109405044 B CN109405044 B CN 109405044B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 339
- 238000010438 heat treatment Methods 0.000 claims abstract description 78
- 238000003860 storage Methods 0.000 claims abstract description 75
- 239000000446 fuel Substances 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 21
- 239000010865 sewage Substances 0.000 claims description 2
- 241001122767 Theaceae Species 0.000 description 11
- 238000007667 floating Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 9
- 238000003287 bathing Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 8
- 238000010276 construction Methods 0.000 description 7
- 230000001502 supplementing effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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- Thermal Sciences (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention provides integrated mobile heat source equipment, which comprises a box shell, a heating device and a medium storage container, wherein the heating device and the medium storage container are arranged in the box shell; the medium storage container is arranged on the support base, one side of the support base is provided with a vertical support frame integrally formed with the support base, the support frame is three layers, and the first water pump, the third water pump and the second water pump are sequentially arranged from top to bottom. The dual-purpose one-standby water pump adopts a vertical three-dimensional placement mode, so that the occupied space and the cost are effectively saved, and the device is more convenient to install and use in a limited space; meanwhile, the running cost of the whole running of the device can be effectively reduced, the running efficiency is increased, and the stability of the outlet water temperature is effectively ensured.
Description
Technical Field
The present invention relates to a heat source device, and more particularly, to an integrated mobile heat source device.
Background
In building sites, floating population gathering living areas such as field working sites and the like are limited by the use time of temporary living, the traditional hot water facilities and a hot water supply system are relatively large in construction investment and long in construction period, and the traditional hot water facilities are required to be removed or dismantled in a relatively short time in the temporary living areas, so that the use time of the traditional hot water facilities is short and the loss is large. Therefore, at present, a temporary living area with a floating population is basically not put into construction of special hot water facilities and hot water supply systems, a certain area of rooms or sites are always reserved in the living area alone to serve as public bathing rooms, the bathing rooms are always provided with running water pipes, but no hot water pipes, when the floating population needs to wash hot water, the floating population needs to carry hot water to the bathing rooms, and the carried hot water is generally from an electric tea boiler. However, as more people get off duty, the bath is often concentrated on the hot water burned by the electric tea boiler, the bath requirement of the people getting off duty can not be basically met, besides the people who are arranged in front can get the hot water, the temperature of the hot water got by the people behind is basically not high enough, the bath is very difficult in winter, and the electric wires are drawn by the population with fluidity, so that the hot water is burned quickly in dormitory, various safety accidents are easily caused, the fire disaster caused by the electric wires is happened when the population with fluidity gathers in the temporary living area, and the management difficulty of the temporary living area is increased. In addition, the electric tea boiler has high hot water firing power, high electric charge, low hot water firing speed, very limited water supply amount, and a small economic burden on enterprises or individuals, and the electric tea boiler has high power, the electric tea boiler is basically scrapped when being moved or removed, and the electric tea boiler is easy to damage in the use process, because the electric tea boiler is difficult to supply power to a temporary living area, the electric tea boiler has small investment through electric expansion, and a certain time is required, the electric expansion is very uneconomical due to the temporary characteristics of the temporary living area, the electric tea boiler is hardly practical, the service life of the electric tea boiler is generally less than 3 years, and the electric tea boiler is basically scrapped when the temporary living area is moved or removed.
For this reason, a new type of heating equipment is needed that can meet both fast movement and fast heating. The patent document with the publication number of CN206310586U discloses a movable rapid installation heating device, which comprises a movable container device, a fuel storage device arranged in the movable container device, a heating device arranged in the movable container device and a medium storage device arranged in the movable container device, and the device solves the problems that the existing miniature boiler needs to be installed in a specific installation place and is inconvenient to move and disassemble, and provides the movable heating device which is used in some semi-fixed places such as construction sites and the wild, thereby having good application prospect and adaptability. As an initial research result of the present inventors, this device has the following drawbacks: (1) The communication pipeline 401 and the communication pipeline 403 between the heating device and the medium storage device are respectively provided with a standby pump besides the water pump, so that the equipment cost is increased, the occupied space is increased, and the installation and the use in a limited space are not facilitated; (2) The water temperature, pressure and the like cannot be accurately controlled, and the operation effect is poor.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides integrated mobile heat source equipment, and solves the problems of larger occupied space, higher cost and poorer operation effect of the conventional mobile heat supply device.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides an integrated form removes heat source equipment, includes box shell and sets up heating device and medium storage container in the box shell, be equipped with hot water supply export, inner loop delivery port, inner loop return water mouth and cold water inlet on the medium storage container, the cold water inlet links to each other with the cold water inlet tube, the inner loop return water mouth links to each other with heating device through the inner loop return water pipe, the inner loop delivery port links to each other with heating device through the inner loop outlet pipe, hot water supply export links to each other with hot water delivery pipe, be equipped with first water pump and second water pump on inner loop outlet pipe and the hot water delivery pipe respectively, its characterized in that: a standby water pipe is arranged in parallel between the internal circulation water outlet pipe and the hot water supply pipe, and a third water pump which is connected in parallel with the first water pump and the second water pump is arranged on the standby water pipe; a first switch valve and a second switch valve are respectively arranged between the water outlet end of the third water pump and the inner circulation water outlet pipe, and between the water inlet end and the inner circulation water outlet pipe, and a third switch valve and a fourth switch valve are respectively arranged between the water outlet end of the third water pump and the hot water supply pipe, and between the water inlet end and the hot water supply pipe; a hot water return pipe connected with the internal circulation water outlet pipe is arranged on the internal circulation water outlet pipe at a position close to the medium storage container; the medium storage container is arranged on the support base, one side of the support base is provided with a vertical support frame integrally formed with the support base, the support frame is three layers, and the first water pump, the third water pump and the second water pump are sequentially arranged from top to bottom.
Further, the water pump further comprises a central controller, and the first water pump, the third water pump, the second water pump, the first switching valve, the second switching valve, the third switching valve and the fourth switching valve are respectively connected with the central controller.
Further, a fifth switch valve is arranged on the cold water inlet pipe and is connected with the central controller.
Further, an overheat protection sensor, a first liquid level sensor and a first temperature sensor which are respectively connected with the central controller are arranged in the heating device.
Further, a second liquid level sensor and a second temperature sensor which are respectively connected with the central controller are arranged in the medium storage container.
Further, the hot water supply pipe is provided with a pressure sensor and a first flow sensor which are respectively connected with the central controller.
Further, a third temperature sensor, a sixth switch valve and a second flow sensor which are respectively connected with the central controller are arranged on the hot water return pipe.
Further, the device also comprises a drain pipe which is respectively connected with the heating device and the medium storage container.
Further, the medium storage container is also provided with an overflow pipe connected with the sewage draining pipe.
Further, a fuel storage device connected with the heating device is further arranged in the box body shell, and a third liquid level sensor connected with the central controller is arranged in the fuel storage device.
The invention has the positive effects that:
(1) The third water pump is a standby pump of the first water pump on the heat internal circulation pipeline and is also used as a standby pump of the second water pump on the hot water supply pipeline, so that the measure that the first water pump and the second water pump are respectively provided with the standby pump is avoided, the manufacturing cost of equipment is effectively saved, and meanwhile, the dual-purpose one-standby water pump adopts a vertical three-dimensional placement mode, the occupied space is effectively saved, and the device is more convenient to install and use in a limited space; in addition, the dual-purpose water preparation pump and the medium storage container are integrally arranged on the integrally formed support combination frame, so that the occupied space is effectively saved, and the stability of the whole operation is ensured.
(2) The invention connects the hot water return pipeline with the thermodynamic internal circulation pipeline, but not directly connects the hot water return pipeline with the medium storage container, and can directly return to the heating device without passing through the medium storage container.
(3) The traditional heating equipment (boiler) is provided with the water supplementing tank, the water supplementing tank is canceled from being arranged, the water supplementing tank and the heat exchange container are combined into a heating power container (medium storage container), and then the constant temperature control precision of the heating power container can be effectively improved on the basis of carrying out mathematical model calculation on the volume of the heating power container (the relationship between the constant temperature control precision of the heating power container and the volume of the heating power container, the power of the heating power internal circulating water pump, the liquid level height of the heating power container, the time precision of the temperature sensor T2, the medium temperature T1 in the heating equipment and other factors can be more conveniently determined).
Meanwhile, the device utilizes the heat of fuel combustion to heat the medium, and adopts the advantage of a fuel heating mode: the power is high; the operation cost is low (about 40% of the energy consumption of commercial electricity direct water heating).
(4) The invention can realize accurate monitoring and control of temperature, pressure and flow, and the water yield and the temperature of hot water outlet are controlled within a certain range by intelligent automatic control, so that the human body basically does not feel the change of water temperature in the bathing process.
(5) The equipment department adopts fuel combustion to heat bath water, the equipment department is from taking fuel storage device, once annotate the fuel and can burn about 200 tons of hot water, supposedly the daily hot water quantity is 10 tons, once annotate the fuel and can satisfy the bath demand of about 20 days, after the fuel is used up, can annotate the fuel again (heating energy does not receive electric power constraint).
(6) The invention adopts the form of a heating device, a storage container and other equipment, an internal circulation pipeline, a return pipeline and other modularized pipeline systems, the equipment and the modularized pipeline systems adopt factory scale production, and the site installation can be completed only in a few days. When the temporary living area is disassembled or dismantled, the equipment and the modularized pipeline system can be moved to another temporary living area or disassembled to a turnover place, the movement from one temporary living area to another temporary living area can be completed within a few days, the equipment and the materials are almost free from loss, and the installation, the movement and the disassembly are very convenient.
(7) The invention has the advantages of durability, long service life and difficult damage.
Drawings
Fig. 1 is a schematic structural view of an integrated mobile heat source device;
FIG. 2 is an electrical schematic of an integrated mobile heat source device;
FIG. 3 is a schematic view of the structure of the support assembly rack;
FIG. 4 is a schematic diagram of a front view of an integrated mobile heat source device;
FIG. 5 is a schematic side view of an integrated mobile heat source device;
FIG. 6 is a schematic top view of an integrated mobile heat source device;
FIG. 7 is a schematic diagram of a media storage container;
FIG. 8 is a schematic diagram of the combination structure of the dual-purpose water pump;
FIG. 9 is a schematic diagram of a fuel storage device;
FIG. 10 is a graph of temperature sensor performance;
Fig. 11 is a schematic diagram of the operation of the thermodynamic container.
Detailed Description
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 9, a preferred embodiment of the present invention provides an integrated mobile heat source device, which comprises a box housing 101, a heating device 301 and a medium storage container 201 disposed in the box housing 101, wherein a hot water supply outlet 204, an internal circulation water outlet 205, an internal circulation water return port 206 and a cold water inlet 207 are disposed on the medium storage container 201, the cold water inlet 207 is connected with a cold water inlet pipe 604, the internal circulation water return port 206 is connected with the heating device 301 through an internal circulation water return pipe 601, the internal circulation water outlet 205 is connected with the heating device 301 through an internal circulation water outlet pipe, the hot water supply outlet 204 is connected with a hot water supply pipe 602, a first water pump 501 (a water pump P1) and a second water pump 503 (a water pump P2) are disposed on the internal circulation water outlet pipe and the hot water supply pipe 602, a standby water pipe is disposed in parallel between the internal circulation water outlet pipe and the hot water supply pipe 602, and a third water pump 502 (a water pump P3) is disposed on the standby water pipe and is in parallel with the first water pump 501 and the second water pump 503; a first switch valve (an electric valve V1 in fig. 1) and a second switch valve (an electric valve V2 in fig. 1) are respectively arranged between the water outlet end and the inner circulation water outlet pipe, and between the water inlet end and the inner circulation water outlet pipe of the third water pump 502, and a third switch valve (an electric valve V3 in fig. 1) and a fourth switch valve (an electric valve V4 in fig. 1) are respectively arranged between the water outlet end and the hot water supply pipe, and between the water inlet end and the hot water supply pipe; a hot water return pipe 603 connected with the internal circulation water outlet pipe is arranged on the internal circulation water outlet pipe at a position close to the medium storage container 201; as shown in fig. 3, the medium storage container is disposed on a support base 3001, a vertical support frame 3002 integrally formed with the support base 3001 is disposed on one side of the support base 3001, the support frame 3002 is formed with three layers, and the first water pump 501, the third water pump 502 and the second water pump 503 are sequentially disposed from top to bottom.
As shown in fig. 2, the device further comprises a central controller, and the first water pump 501, the third water pump 502, the second water pump 503, the first switching valve (electric valve V1), the second switching valve (electric valve V2), the third switching valve (electric valve V3) and the fourth switching valve (electric valve V4) are respectively connected to the central controller.
The cold water inlet pipe 604 is provided with a fifth switch valve (an electric valve V5), and the fifth switch valve is connected with the central controller.
The heating device 301 is provided with an overheat protection sensor 302, a first liquid level sensor 303 and a first temperature sensor 304 which are respectively connected with a central controller.
The medium storage container 201 is provided with a second liquid level sensor 202 and a second temperature sensor 203 which are respectively connected with a central controller.
The hot water supply pipe 602 is provided with a pressure sensor 703 and a first flow sensor 701, which are respectively connected to the central controller.
The hot water return pipe 603 is provided with a third temperature sensor 704, a sixth switching valve (an electric valve V6) and a second flow sensor 702, which are respectively connected to a central controller.
The third temperature sensor 704 is disposed in the tank housing 101, and a fourth temperature sensor 705 is disposed on the hot water return pipe outside the tank housing.
As shown in fig. 1, the device further comprises a drain pipe 605 (drain outlet 208 is arranged on the corresponding medium storage container), the drain pipe 605 is respectively connected with the heating device 301 and the medium storage container 201, wherein the drain pipe connected with the heating device 301 is provided with an eighth switch valve (electric valve V8) connected with the central controller, and the drain pipe connected with the medium storage container 201 is provided with a seventh switch valve (electric valve V7) connected with the central controller.
The medium storage container is also provided with an overflow pipe 606 connected with the drain pipe 605.
The inside of the box body shell is also provided with a fuel storage device 401 connected with the heating device, and a third liquid level sensor 402 connected with the central controller is arranged in the fuel storage device 401.
The invention provides an integrated mobile heat source device working principle:
the heating device 301 stores a certain volume of water, and the water absorbs heat generated by a burner in the heating device to raise the water temperature;
The constant temperature water in the heating power container (medium storage container 201) is conveyed to the user unit through the hot water outlet and the water pump P2, after water is collected (heated) by the user, the water with reduced temperature is conveyed back to the medium storage container (or the heating device) through the hot water return pipe, when the water temperature or the water level in the medium storage container is reduced to a certain point, the electric valve V5 is opened to supplement water for the medium storage container, when the water temperature of the medium storage container is reduced to a set temperature, the water pump P1 is started, the internal heating circulation is started, the heat in the heating device is conveyed to the medium storage container through the water pump P1 and the internal heating circulation pipeline, the water temperature in the medium storage container is increased, and when the water temperature reaches a certain value, the water pump P1 stops working. The water pump P1 is used for conveying hot water from the heating device to the medium storage container and controlling a certain conveying amount to heat the water in the medium storage container, and the starting and the stopping of the water pump P1 and the power are controlled to enable the mixed water to reach a designed temperature range;
Cold water enters the medium storage container from the cold water inlet pipe through the electric valve V5, when the liquid level of the thermal container reaches H23 (three liquid levels of H21, H22 and H23 are respectively arranged from top to bottom according to actual conditions as shown in FIG. 7), the pump of the thermal internal circulating water pump P1 is started, and when the cold water is continuously injected into the medium storage container until the liquid level H21 is reached, the electric valve V5 is closed; when the liquid level drops to H22, the electric valve V5 is opened, and when the liquid level reaches H21, the electric valve V is closed, and the liquid level in the medium storage container is always kept between H22 and H21.
Thermodynamic internal circulation:
the water in the medium storage container enters the heating device through the thermodynamic internal circulation water outlet, the thermodynamic internal circulation water outlet pipe, the water pump P1 and the heating device (S1) inlet, and returns to the medium storage container through the heating device outlet, the thermodynamic internal circulation water return pipe and the thermodynamic internal circulation water return port, so that thermodynamic internal circulation is formed, in the process, the water temperature is increased when the water passes through the heating device, and the water pump P1 supplies power for circulation;
when the water pump P1 fails, the electric valve V1 and the electric valve V2 are opened, the water pump P1 stops working, and the water pump P3 replaces the water pump P1 to work.
Hot water supply cycle:
When the water temperature in the medium storage container reaches the set requirement, the hot water supply water pump P2 can be opened; the heating cycle is: the medium storage container, the hot water supply outlet, the hot water supply pipe, the hot water supply pump P2, the hot water supply pipe, the water collecting system/user unit, the hot water return pipe and the hot water return control electric valve V6 are arranged, and finally the hot water return enters the medium storage container or directly enters the thermodynamic internal circulation water outlet pipe to enter the heating device for heating along with the thermodynamic internal circulation, and finally enters the medium storage container.
Furthermore, if there is a municipal fuel supply line near the installation site of the apparatus, the fuel storage device may be omitted and the fuel required for the burner in the combustion device provided by the municipal fuel supply line. If there is no municipal fuel supply pipe near the installation site of the device, a fuel storage device is built in the device, the fuel storage device is a fuel storage container with a certain volume and stores a certain amount of fuel for the burner, the fuel storage device is provided with a built-in fuel storage amount test sensor, and when the fuel storage is lower than a warning line, a warning is sent to remind the user of filling the fuel.
Equipment control scheme in normal operation:
1. Fuel reserve detection and control
When the device is started, firstly, detecting the fuel reserve in the fuel storage device, wherein a fuel level sensor H3 (a third liquid level sensor) is arranged in the fuel storage device, the central controller reads the fuel reserve detected by the H3, and when the fuel reserve is less than a certain amount (for example, 15% of the volume), the central controller sends out a 'fuel shortage' warning to remind a manager to fill fuel, and when the fuel reserve is less than a minimum set amount (for example, 5% of the volume), the central controller sends out a warning and prohibits the device from being started.
2. Water inflow control
The second liquid level sensor is used for sensing water level information of the medium storage container and transmitting the water level information to the central controller, and the electric valve V5 is an executing mechanism for water level control and is controlled by the central controller. The water level in the thermodynamic container is maintained between H22 and H21 by three-point water level information of H21, H22 and H23 on a liquid level sensor H2 (a second liquid level sensor) and on-off control of a water inlet electric valve V5.
3. Hot water supply control
A. Constant pressure control: controlling hot water supply pressure, and maintaining the stable hot water supply pressure in the pipeline: the hot water supply pipe is provided with a pressure sensor S (pressure sensor 703) for detecting the water pressure of the hot water supply pipe and transmitting the water pressure to the central controller; a pressure storage tank SS (pressure storage tank 706) for buffering the drop and rise of the pressure is installed on the hot water supply pipe; the central controller controls the power of the second water pump by controlling the frequency converter of the second water pump;
b. And (3) controlling the water supply temperature: and setting upper and lower limit values of the hot water supply temperature, and stopping the second water pump within the range that the temperature exceeds the limit value.
C. And (3) pipeline temperature control: the hot water in the hot water supply pipe gradually drops along with the time in a natural state, and the water temperature of the hot water supply pipe is controlled to be maintained in a certain range, so that the hot water meeting the requirements is collected by a user in a specified time: a temperature sensor T4 (a fourth temperature sensor 705) is arranged at the tail end of the last user unit, an electric valve V6 is arranged on a water return pipeline in the shell of the box body, when the temperature sensor T4 is smaller than a set temperature lower limit, the electric valve V6 is opened by the central controller, the pressure of a water pipe is reduced, the water pump P2 is started, hot water flows from a hot water supply pipe to the water return pipe through the water pump P2 and flows back to a medium storage container or a circulation pipeline at the rear end of a thermodynamic internal circulation pump (the water pump P1), cold water in the pipeline is gradually replaced by hot water, the water temperature in the pipeline is gradually increased, when the temperature sensor T4 is larger than the set temperature upper limit, the electric valve V6 is closed, the pressure of the water pipe is increased, and the pressure of the water pump P1 maintains constant.
D. leak protection control: when the pipeline leaks, the water pump P2 stops working, and a warning is sent out to achieve leakage control.
4. Thermostatic control of thermodynamic internal circulation and thermodynamic container
The water pump P1 pumps water from the thermodynamic container (namely a medium storage container, the following description is the same) through a pipeline, pumps the water into the boiler (namely a heating device, the following description is the same) through the pipeline, heats the water through the boiler, and then enters the thermodynamic container through a water pipe led out from the boiler and connected to the thermodynamic container, heats the water temperature stored in the thermodynamic container, and controls the water temperature in the thermodynamic container to achieve a dynamic constant temperature state by controlling the power and the running time of the water pump P1 (the constant temperature here means that the water temperature fluctuates within a set temperature variation allowable range, the following description is the same).
Specifically, due to the hysteresis of heat conduction, the performance graph of the temperature sensor is shown in fig. 10, f is the temperature of the measured object, t is the reaction time of the temperature sensor, Δf is the control accuracy requirement, Δt is the reaction time required for the temperature to reach the sensor measurement accuracy requirement, Δf is the control temperature accuracy requirement, and the water temperature is considered to be constant temperature control as long as the temperature fluctuation range does not exceed ±.Δf.
As shown in fig. 11, the working principle diagram of the thermodynamic container is that the water temperature of the heating device (boiler) is f1 (the fluctuation is large), the water supplementing temperature is f3 (the fluctuation is large), the water temperature control target temperature in the thermodynamic container is f2, the water supply temperature is f4, the water returning temperature is f5, when the water temperature of the thermodynamic container is between (f 2-f, f2+ [ f ]) and the thermodynamic container is determined to be constant temperature control, and the temperature units are all the temperature;
The flow rate of hot water circulated into the heating unit (boiler) is V1, the flow rate of hot water circulated back into the heating unit is V2, V2 = V1, the flow rate of water replenished into the heating unit is V3, the flow rate of hot water supplied is V4, the flow rate of backwater is V5, and the units are L/S;
the bottom area of the thermodynamic container is S, the water level is H [ range (H2, H1) ], the water volume V=S×H in the thermodynamic container, the water level lower limit is H2, when the water level is lower than H2, the water supplementing valve is opened, and when the water level is higher than H1, the water supplementing valve is closed;
According to the law of conservation of energy,
(1) In the initial state, the water level of the thermal container is H, the temperature is f2, and the heat of hot water in the thermal container is:
S×H×f2
(2) The heating process of the heating power container, the circulating pump is started, hot water flows from the heating unit to the heating power container, cold water (opposite to the cold water and the cold water) in the heating power container flows back to the heating unit, the temperature of the heating power container rises by delta f, the required time is delta t, the circulating water outlet flow V2 = V1, and according to the law of conservation of energy:
f1×V1×⊿t+S×H×f2-f2×V1×⊿t＝S×H×(f2+⊿f)
(f 1-f 2) ×v1 is the heating power P1 of the heating apparatus:
P1＝(f1-f2)×V1
V1 is the flow of the circulating pump;
sxh is the water volume of the thermodynamic container;
the delta f is the control range of constant temperature control;
The delta t is the reaction time required by the temperature sensor when the water temperature f2 rises to (f2+ (delta f);
examples:
The power of the heating device is 10 multiplied by 10 4 Kcal
f1＝60℃
f2＝42℃
⊿f＝0.5℃
⊿t＝5S
V1=p/(f 1-f 2) =10×10 4/(3600× (60-42))=1/54L/S
When h=1.2 m, s=23.1 square decimeters;
At this time, the thermostatic control can be achieved only when the volume of the thermodynamic container is greater than or equal to 277.2L.
(3) When the water level of the thermal container reaches H and the water temperature reaches the target temperature control value f2, the hot water is normally supplied and the water is replenished, and at the moment, the water is normally supplied within the period of delta t: sXHxf2+f1 XV1 XΔt-f2 XV2 XΔt+f3 XV3 XΔt-f4 XV4 XΔt+f5 XV5 XΔt=SXH× (f2+ +Δf);
When the temperature f3 of the backwater is equal to or slightly less than f2, the backwater valve is closed, so that under the dynamic control condition, the influence of the energy of the backwater on the thermodynamic volume water temperature is small, and the water supplementing flow speed V3 is negligible, and is equal to the water supply flow speed V4, V4 = V3 and V2 = V1, and therefore, the equation can be simplified as follows:
f1×V1×⊿t+S×H×f2-f2×V1×⊿t+f3×V3×⊿t-f4×V4×⊿t＝S×H×(f2+⊿f)
(f 1-f 2) V1 is the heating power P1 of the heating unit
(F 4-f 3) V4 is the hot water supply power P2 of the system
Or:
If the system reaches constant temperature control, the water level in the thermodynamic container is kept to fluctuate between (f 2-delta f, f2+' delta f), and the factor is equal to the equation The various factors within are related. According to the principle of constant temperature control, a variable frequency or start-stop mode is adopted to control the water pump, so that flow control is realized, namely, by installing corresponding sensors at each part of the system, according to the mathematical model, the constant temperature control of the thermal container is realized more conveniently by combining an automatic control program.
5. Cooling fan control program
Cooling fan F1 corresponds water pump P1, cooling fan F2 corresponds water pump P2, cooling fan F3 corresponds water pump P3 for the temperature that cooling water pump P1, P2, P3 during operation produced is used for protecting the water pump from overheating and burning out: once the water pump is started, the corresponding cooling fans are started immediately and simultaneously; the normally closed temperature switch of the water pump automatically bounces off when the water pump is overheated, at the moment, the water pump stops running (the contactor is tripped when the power is cut off) and is switched to the standby pump (the water pump switching command is executed), and the cooling fan does not stop running and still continues running; the cooling fan can also be controlled to start or stop by a program (for example, when the normally closed temperature switch of the water pump is closed due to temperature drop, the cooling fan is stopped after continuing to work for a certain time).
6. Burner B and boiler heating control
The burner B heats a certain amount of water stored in the boiler by burning fuel, and then injects hot water into the thermodynamic container by thermodynamic internal circulation, so as to achieve thermodynamic output: a temperature sensor T1 (first temperature sensor) is arranged in the boiler and is used for detecting the water temperature in the boiler; an overheat protection sensor is arranged in the boiler and used for protecting the boiler and avoiding damage to the boiler caused by overhigh water temperature; a liquid level sensor is arranged in the boiler and used for protecting the boiler and preventing dry combustion; the burner has a status sensor for feeding back the operating status of the burner.
The building site living area is a temporary living area where floating population gathers, various living facilities of the area are built for the purpose of short-term living, and the temporary living area is removed or dismantled along with the dispatching of the floating population after the engineering construction is completed. The temporary living characteristics of the temporary living areas determine that the construction investment of living facilities is short, flat and quick, short-term living conditions are met, and the method is low in cost, economical and applicable. The invention is developed aiming at the bathing problem of the floating population gathering temporary living area of the construction site, and thoroughly solves the bathing problem of the floating population gathering temporary living area; furthermore, the invention can be also applied to various floating population gathering temporary living areas, towns, villages, enterprises and institutions, industrial and mining enterprises, outdoor camps, various gatherings and as a permanent building matched hot water supply facility for bathing or heating.
The main application of the integrated mobile heat source equipment provided by the invention is as follows:
1. providing constant temperature hot water for bathing
A. Living area of floating population
B. Building site living area
C. outdoor camp
D. enterprise and public institution
E. Industrial and mining enterprises
F. business places such as hotel and guesthouse
G. Other collective users
2. Providing constant temperature hot water for heating
A. heating application for general residents
B. Heating of temporary erection
3. Other uses
Meets the requirements of business and non-business production, living hot water and the like
The integrated mobile heat source equipment provided by the invention has the characteristics that:
1) Movement characteristics: the integrated mobile heat source equipment is quickly installed, adopts a modularized design, can be conveniently and quickly installed and moved by using a transport means, and can be conveniently and quickly installed to another place after the demand period of the equipment in one place is finished.
2) Integration: the method does not need matched equipment and installation, only selects proper installation places (can be installed outdoors), connects water and electricity and sets operation parameters.
3) And (3) convenience: the whole transportation and the assembly are very convenient; and (3) energy supply: the oil/gas fuel can be used.
4) Intelligent: the water temperature is accurately controlled according to the requirement.
5) And (3) refining: the outlet water temperature is precisely controlled: the temperature deviation is controlled within a proper range, and dynamic control is realized.
6) Energy saving: the heat efficiency is high, and corresponding hot water is burned in real time according to the hot water demand of users.
The foregoing description of the preferred embodiments of the present invention has been presented only to facilitate the understanding of the principles of the invention and its core concepts, and is not intended to limit the scope of the invention in any way, however, any modifications, equivalents, etc. which fall within the spirit and principles of the invention should be construed as being included in the scope of the invention.
Claims (8)
1. The utility model provides an integrated form removes heat source equipment, includes box shell and sets up heating device and medium storage container in the box shell, be equipped with hot water supply export, inner loop delivery port, inner loop return water mouth and cold water inlet on the medium storage container, the cold water inlet links to each other with the cold water inlet tube, the inner loop return water mouth links to each other with heating device through the inner loop return water pipe, the inner loop delivery port links to each other with heating device through the inner loop outlet pipe, hot water supply export links to each other with hot water delivery pipe, be equipped with first water pump and second water pump on inner loop outlet pipe and the hot water delivery pipe respectively, its characterized in that: a standby water pipe is arranged in parallel between the internal circulation water outlet pipe and the hot water supply pipe, and a third water pump which is connected in parallel with the first water pump and the second water pump is arranged on the standby water pipe; a first switch valve and a second switch valve are respectively arranged between the water outlet end of the third water pump and the inner circulation water outlet pipe, and between the water inlet end and the inner circulation water outlet pipe, and a third switch valve and a fourth switch valve are respectively arranged between the water outlet end of the third water pump and the hot water supply pipe, and between the water inlet end and the hot water supply pipe; a hot water return pipe connected with the internal circulation water outlet pipe is arranged on the internal circulation water outlet pipe at a position close to the medium storage container; the medium storage container is arranged on the support base, one side of the support base is provided with a vertical support frame integrally formed with the support base, the support frame is three layers, and the first water pump, the third water pump and the second water pump are sequentially arranged from top to bottom;
The system further comprises a central controller, wherein the first water pump, the third water pump, the second water pump, the first switch valve, the second switch valve, the third switch valve and the fourth switch valve are respectively connected with the central controller;
the fuel storage device is connected with the heating device, and a third liquid level sensor connected with the central controller is arranged in the fuel storage device.
2. An integrated mobile heat source device as recited in claim 1, wherein: the cold water inlet pipe is provided with a fifth switch valve which is connected with the central controller.
3. An integrated mobile heat source device as recited in claim 1, wherein: and an overheat protection sensor, a first liquid level sensor and a first temperature sensor which are respectively connected with the central controller are arranged in the heating device.
4. An integrated mobile heat source device as recited in claim 1, wherein: and a second liquid level sensor and a second temperature sensor which are respectively connected with the central controller are arranged in the medium storage container.
5. An integrated mobile heat source device as recited in claim 1, wherein: the hot water supply pipe is provided with a pressure sensor and a first flow sensor which are respectively connected with the central controller.
6. An integrated mobile heat source device as recited in claim 1, wherein: and a third temperature sensor, a sixth switch valve and a second flow sensor which are respectively connected with the central controller are arranged on the hot water return pipe.
7. An integrated mobile heat source device according to any one of claims 1-6, wherein: and the device also comprises a drain pipe which is respectively connected with the heating device and the medium storage container.
8. An integrated mobile heat source device as recited in claim 7, wherein: and the medium storage container is also provided with an overflow pipe connected with the sewage draining pipe.
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| CN201811330113.2A CN109405044B (en) | 2018-11-09 | 2018-11-09 | Integrated mobile heat source equipment |
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| CN109405044B true CN109405044B (en) | 2024-06-14 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN205481742U (en) * | 2016-03-31 | 2016-08-17 | 深圳市新环能科技有限公司 | Air source heat pump unit and couple constant temperature and isopiestic pressure hot water supply system of water tanks combination |
| CN208998163U (en) * | 2018-11-09 | 2019-06-18 | 陈浩军 | A kind of integrated form moving heat source equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848368A (en) * | 2014-10-22 | 2015-08-19 | 青岛万力科技有限公司 | Multiple heat source complementary type heat-exchange hot-water supply system |
| CN107228402A (en) * | 2017-06-07 | 2017-10-03 | 广东万家乐燃气具有限公司 | A kind of central hot-water system |
| CN108662781A (en) * | 2018-05-16 | 2018-10-16 | 江苏迈能高科技有限公司 | A kind of intelligent hot water circulatory system and its control method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205481742U (en) * | 2016-03-31 | 2016-08-17 | 深圳市新环能科技有限公司 | Air source heat pump unit and couple constant temperature and isopiestic pressure hot water supply system of water tanks combination |
| CN208998163U (en) * | 2018-11-09 | 2019-06-18 | 陈浩军 | A kind of integrated form moving heat source equipment |
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