CN205383768U - Gas hot water system , gas hot -water heating system, gas heater and hot water system - Google Patents
Gas hot water system , gas hot -water heating system, gas heater and hot water system Download PDFInfo
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- CN205383768U CN205383768U CN201620105145.2U CN201620105145U CN205383768U CN 205383768 U CN205383768 U CN 205383768U CN 201620105145 U CN201620105145 U CN 201620105145U CN 205383768 U CN205383768 U CN 205383768U
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- 239000007789 gas Substances 0.000 claims description 29
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- 239000000463 material Substances 0.000 claims 1
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- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
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- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a gas hot water system, gas hot -water heating system, gas heater and hot water system. The gas hot water system include: the heat exchanger that has water inlet and delivery port, it is right to be used for water in the heat exchanger carries out the burner that heats, burner has a mode of an output scope and the 2nd mode of the 2nd output scope, an output scope is lighter than 4 kilowatts, with the water pump of heat exchanger intercommunication, with burner with the controlling means that the water pump is connected. This gas hot water system can reduce the number of starts of burner and water pump, can reduce the sound that gas hot water system sent, can maintain out the temperature steady of water.
Description
Technical field
This utility model relate to a kind of hot water technique field, has particularly related to a kind of gas-fired water heater, fuel gas water heating system, gas heater and hot water apparatus.
Background technology
Existing hot water apparatus (gas heater, heating stove and electric heater), forms circulation line often through return pipe and avoids waste and user to use inconvenience.Water in circulation line is heated by hot water apparatus, and such user is when using hot water, it is not necessary to discharges hot water apparatus and by the normal-temperature water in the pipeline between water terminal or water at low temperature, can use hot water at any time.
In the prior art, hot water apparatus is when being circulated, and owing to hot water apparatus heating power is higher, the water temperature of the water in circulation line often comparatively fast reaches or comparatively fast exceedes the leaving water temperature of setting, the now heating of the heater stop in hot water apparatus, circulation line stops circulation.But once stop heating and circulation, the temperature of the water in circulation line will reduce again, and the temperature once the water in circulation line is down to relatively low, can cause that heater and water pump are again started up.Heating and water pump after being again started up can make the temperature of the water in circulation line comparatively fast reach again or comparatively fast exceed the leaving water temperature of setting, and now the heater in hot water apparatus stops heating again.Thus, hot water apparatus of the prior art is necessary in order to the water temperature realizing the water in circulation line meets the requirements usually water pump and heater being opened and closed.Simultaneously in the process of circulation line circulation and stopping circulation, in circulation line, the excursion of the temperature of water is relatively larger, affects the comfort level that user uses.Further, since hot water apparatus, especially gas-fired water heater, run at higher-wattage and frequent start-stop process can produce bigger noise.
Utility model content
In order to overcome the drawbacks described above of prior art, technical problem to be solved in the utility model there is provided a kind of gas-fired water heater, fuel gas water heating system, gas heater and hot water apparatus, and it can solve at least one of the problems referred to above.
Concrete technical scheme of the present utility model is:
The utility model discloses a kind of gas-fired water heater, described gas-fired water heater includes: have the heat exchanger of water inlet and outlet；For the burner that the water in described heat exchanger is heated, described burner has the first output power range and the second output power range；Described first output power range is less than 4 kilowatts；The water pump connected with described heat exchanger；The control device being connected with described burner and described water pump.
The utility model discloses a kind of fuel gas water heating system, described fuel gas water heating system includes the heat exchanger with water inlet and outlet；Described outlet is connected to the hot water line of water end (W.E.)；Described water inlet is connected to the water return pipeline of water end (W.E.)；Hot water line, water return pipeline and heat exchanger can connect formation circulation line；For the burner that the water in described heat exchanger is heated, described burner has the first output power range and the second output power range；Described first output power range is less than 4 kilowatts；The water pump connected with described heat exchanger；The control device being connected with described burner and described water pump.
The utility model discloses a kind of gas heater, this gas heater includes: have the heat exchanger of water inlet and outlet；For the burner that the water in described heat exchanger is heated；Described burner has the first mode of operation of the first output power range and the second mode of operation of the second output power range；Described first output power range is less than 4 kilowatts；The stepless time adjustment blower fan in described burner downstream it is arranged on along combustion product gases direction；The water pump connected with described heat exchanger；The control device being connected with described burner, described water pump and described stepless time adjustment blower fan.
The utility model discloses a kind of hot water apparatus, this hot water apparatus includes: have the heat exchanger of water inlet and outlet；For the heater that the water in described heat exchanger is heated, the heating power of described heater can less than 4KW；The water pump connected with described heat exchanger；The control device being connected with described heater and described water pump.
This gas-fired water heater can reduce the number of starts of burner and water pump, it is possible to reduces the sound that gas-fired water heater sends, it is possible to maintains the temperature stabilization of water outlet.
Accompanying drawing explanation
Accompanying drawing described here only for illustrative purposes, and is not intended to limit this utility model scope of disclosure by any way.It addition, the shape of each parts in figure and proportional sizes etc. are only schematic, it is adapted to assist in understanding of the present utility model, is not the shape and the proportional sizes that specifically limit each parts of this utility model.Those skilled in the art is under instruction of the present utility model, it is possible to select various possible shape and proportional sizes to implement this utility model as the case may be.
Fig. 1 is the structural representation of an embodiment of gas-fired water heater in this utility model.
Fig. 2 is the simplification structural representation of an embodiment of fuel gas water heating system in this utility model.
Fig. 3 is the simplification structural representation of another embodiment of fuel gas water heating system in this utility model.
Fig. 4 is the comparison chart of the temperature curve of the water adopting this utility model gas-fired water heater heat exchanger under warm-up cycle pattern and temperature curve with the water of the heat exchanger under warm-up cycle pattern of the gas-fired water heater in prior art.
Fig. 5 is the structural representation of the allotter of gas-fired water heater in Fig. 1.
The accompanying drawing of the figures above is labeled as: 1, heat exchanger；2, burner；3, water pump；4, device is controlled；5, stepless time adjustment blower fan；6, allotter；61, chamber；62, electromagnetic valve；7, flexible pipe；8, housing；9, water return pipeline；10, control portion；11, water mixing valve；12, hot water line；13, cold water pipe.
Detailed description of the invention
Description in conjunction with accompanying drawing and this utility model detailed description of the invention, it is possible to clearly understand details of the present utility model.But, detailed description of the invention of the present utility model described here, only it is used for explaining the purpose of this utility model, and can not be understood as by any way is to restriction of the present utility model.Under instruction of the present utility model, technical staff is it is contemplated that based on arbitrarily possible deformation of the present utility model, these are regarded as belonging to scope of the present utility model.
With reference to shown in Fig. 1, this utility model embodiment discloses a kind of gas-fired water heater, and this gas-fired water heater includes: have the heat exchanger 1 of water inlet and outlet；For the burner 2 that the water in described heat exchanger 1 is heated, described burner 2 has the first output power range and the second output power range；The maximum of described first output power range is less than 4 kilowatts；The water pump 3 connected with described heat exchanger 1；The control device 4 being connected with described burner 2 and described water pump 3.
Described control device is for being under warm-up cycle pattern at described gas-fired water heater, generate for being supplied to the first control signal that described water pump 3 flows to drive the water in described heat exchanger 1, generate for being supplied to described burner 2 the second control signal run under the first output power range by described burner 2.Described gas-fired water heater has warm-up cycle pattern, and described warm-up cycle pattern includes: described control device 4 controls described water pump 3 and drives the water in described heat exchanger 1 to flow, and controls described burner 2 and is in the first mode of operation.
Gas-fired water heater in this utility model embodiment has warm-up cycle pattern.Described gas-fired water heater is when being in warm-up cycle pattern, and the control device 4 in gas-fired water heater can make water pump 3 drive the water in heat exchanger 1 to flow, thus being circulated with the water in circulation line by the water in heat exchanger 1.And the control device 4 in gas-fired water heater can also make burner 2 run in the first operation mode, i.e. make burner 2 run in relatively low output (such as 1-3 kilowatt) situation.By said structure, gas-fired water heater is in warm-up cycle process, when the water temperature convergence preheating target temperature of the water in the water temperature or heat exchanger 1 of the water in guaranteeing circulation line, it is also possible to make water pump 3 be continuously in running status, it is possible to so that burner 2 is continuously in running status.The fluctuation of the water temperature that the water temperature of the water in such circulation line or the water in heat exchanger 1 can also maintain preheating target temperature, the water in circulation line or the water in heat exchanger 1 more for a long time is also less.With reference to shown in Fig. 4, wherein heavy line is the temperature curve adopting the water in the heat exchanger 1 under warm-up cycle pattern of the gas-fired water heater in this utility model, and the undulating value of the temperature of the water in the heat exchanger 1 under warm-up cycle pattern of the gas-fired water heater in employing this utility model is 4 degrees Celsius；Dotted line is the temperature curve of the water in prior art in gas-fired water heater heat exchanger 1 under warm-up cycle pattern, and in prior art, the temperature of the water in gas-fired water heater heat exchanger 1 under warm-up cycle pattern is 8 degrees Celsius.As shown in Figure 4, the temperature curve of the water in the heat exchanger 1 under warm-up cycle pattern of the gas-fired water heater in this utility model compared with prior art in the temperature curve of water in gas-fired water heater heat exchanger 1 under warm-up cycle pattern more steady, basic maintenance tends to or maintains design temperature (50 degrees Celsius).
Meanwhile, due to burner 2 when igniting and when water pump 3 starts the sound that sends of gas-fired water heater higher, and adopt the gas-fired water heater in the embodiment of the present application to decrease the ignition times of burner 2 and the number of starts of water pump 3, thus also just correspondingly reduce the sound that gas-fired water heater sends in warm-up cycle process.Meanwhile, burner runs at the lower output powers, and the sound that gas-fired water heater sends is also relatively low.Learning through overtesting, the sound that gas-fired water heater of the prior art sends under warm-up cycle pattern is substantially between 47-53.5 decibel, and the sound that the gas-fired water heater in the application sends under warm-up cycle pattern is substantially between 40-44 decibel.
In order to coordinate burner 2 to run at the lower output powers, in order to avoid running, due to burner 2, the corrosion generating more condensed water and produce at relatively low output, exhaust fume collecting hood is made of stainless steel, thus ensure that use safety.In order to improve the integrated level of product, in the present embodiment, described gas-fired water heater includes housing 8, and described water pump 3 is positioned at described housing 8, and the housing diameter of described water pump 3 is less than 50MM (millimeter).The operating flux of water pump 3 is less than 5L/MIN (liter/min).
In the present embodiment, in order to make water pump 3 more preferably must be controlled by its flow, described water pump 3 is variable frequency pump.By the step-less adjustment mode of variable frequency pump 3, make to can be transferred through for the user of any pipeline the adjustment of water pump 3, reach the function of constant current cycle (about 3L/MIN).Therefore the water temperature stability circulated, circulation time is shorter, improves user and experiences at the hot water of circulation section.
When described gas-fired water heater is in described warm-up cycle pattern, described control device 4 controls described water pump 3 and drives the water in described heat exchanger 1 to run with preset flow.Concrete, described gas-fired water heater can according to user's pipeline information, the output etc. using the temperature of water in water target temperature, circulation line, burner 2, burner 2, calculate or provide the preset flow with optimal parameter proportioning, with by the output power limit of burner 2 in the first output power range.When described gas-fired water heater is in described warm-up cycle pattern, controlling device 4 can be adjusted the operating flux of water pump 3 according to preset flow.Such as, preset flow is 3L/MIN to K.When gas-fired water heater is in warm-up cycle pattern, when the flow of the water in circulation line is lower than 3L/MIN, the flow of the water in circulation line can be increased until reaching 3L/MIN by water pump 3.When gas-fired water heater is in warm-up cycle pattern, when the flow of the water in circulation line is higher than 3L/MIN, water pump 3 can by the flow-reduction of the water in circulation line until reaching 3L/MIN.Learn through calculating, preset flow may range from 2-5L/MIN.
In the present embodiment, when gas-fired water heater is in warm-up cycle pattern, gas-fired water heater the sound sent can be relatively low, as lower than 46 decibels, thus improved the Experience Degree of user.
In order to reduce the sound sent by gas-fired water heater further, certain vibrations operationally can be produced due to water pump 3, cushion (such as rubber blanket) can be provided with, thus dropping relatively low by the sound sent between water pump 3 and housing 8 between housing 8 and water pump 3.It is also provided with damping part, such as flexible pipe 7, thus being undertaken completely isolated by water pump 3 and complete machine between the pipeline being connected with water pump 3 and water pump 3.Flexible pipe 7 can have pressure and high-temperature resistant result, it is also possible to the absorption of vibrations produced by water pump 3, therefore reduces the noise in warm-up cycle process greatly, improves Consumer's Experience.
Described burner 2 includes allotter 6, and described allotter 6 has at least two chamber 61, and the chamber 61 of at least one described allotter 6 is corresponding with the fire row of one or two or three burners 2.With reference to shown in Fig. 5, in the present embodiment, allotter 6 has three chambers 61 and three electromagnetic valves 62.These three chamber 61 is corresponding with an electromagnetic valve 62 respectively, these three electromagnetic valve 62 can need in running order for the chamber 61 of allotter 6 according to burner 2, such as, these three electromagnetic valve 62 can make these three chamber 61 separately or concurrently in running order.Having one in these three chamber 61 for preheating chamber (being generally minimum chamber 61, it is also possible to share two chambers 61), this preheating chamber is corresponding with two fire rows.When gas-fired water heater is in warm-up cycle pattern, allotter 6 only has preheating chamber and connects with proportioning valve.Now, in running order with preheating corresponding two fire rows of chamber, the output of each fire row substantially about 1 kilowatt, the output of this burner 2 substantially 2KW (kilowatt).
Described control device 4 can be under warm-up cycle pattern at described fuel gas water heating system, generate and be supplied to described burner 2 by the 3rd control signal in the water temp. heating of the water in described heat exchanger 1 to preset range, when the water temperature of the water in described heat exchanger 1 reaches preset range, described control device 4 generates and is supplied to the described burner 2 second control signal for being run under the first output power range by described burner 2, so that the water temperature of the water in described heat exchanger 1 tends to preheating target temperature.In the present embodiment, described warm-up cycle pattern includes: described control device 4 controls described burner 2 and heats the water temperature of the water in described heat exchanger 1 when reaching in preset range, described control device 4 controls described burner 2 and in this first operative mode the water in described heat exchanger 1 is heated, and makes the water temperature of the water in described heat exchanger 1 tend to preheating target temperature.It is said that in general, in order to enable user to take out comparatively satisfactory water when water intaking, preheating target temperature can be lower than with water target temperature, or identical with water target temperature.Such as, can being 46 degrees Celsius with water target temperature, corresponding preheating target temperature can be 43 degrees Celsius.
Namely, under warm-up cycle mode situation, after the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line can be brought up to preset range by burner 2, such as 38-43 degree Celsius, again in the first operation mode, the water in heat exchanger 1 or the water in circulation line is made to tend to preheating target temperature gradually.Owing to, under the first mode of operation, the power of burner is relatively low, it is possible to make the water in circulation line slightly heat up, be progressively heated at preheating target temperature.
When some user's pipelines longer (energy dissipation produced by pipeline is bigger) or needs are rapidly heated (initial water temperature is far below preheating target temperature), the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line can be brought up to preset range by burner 2 in the second operation mode.Such as, preheating target temperature can be 43 degrees Celsius, and preset range can be 38 degrees Celsius to 42 degrees Celsius.When the water temperature of the water in the water temperature or circulation line of the water in heat exchanger 1 is 20 degrees Celsius, burner 2 can be in the second operation mode, namely the output of burner 2 is more than 4KW, the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line is quickly improved.
When some user's pipelines shorter (energy dissipation produced by pipeline is less) maybe need not be rapidly heated (water temperature of the water in the water temperature of the water that initial water temperature is relatively bordering in heat exchanger 1 or circulation line), the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line can be brought up to preset range by burner 2 in the first operation mode.Thus the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line can be tended to the maximum of preset range by burner 2, without occurring that moment exceedes the situation of warm-up cycle target temperature.
In one preferred embodiment, control device 4 receives user and uses rule, and described control device 4 uses gas-fired water heater described in rule control to carry out warm-up cycle pattern based on described user.Such as, rule is used based on user, control device 4 and know the ebb or relatively low by water frequency to the water consumption that be this gas-fired water heater on 9 o'clock daytimes at 11 o'clock, in order to save power, controlling device 4 can make gas-fired water heater not enter warm-up cycle pattern, and namely the water pump 3 of this gas-fired water heater and burner 2 are in halted state.Again such as, rule is used based on user, control device 4 and obtain the peak or higher by water frequency of the water consumption that at 22 in evening is this gas-fired water heater, in order to improve user experience, control device 4 and gas-fired water heater can be made to enter warm-up cycle pattern (such as point in evening 21) before 22 at night.So when user needs with water, it is possible to get at once and comparatively meet the water that user requires.
The embodiment of the present application discloses a kind of fuel gas water heating system, and this gas and hot water system includes the heat exchanger 1 with water inlet and outlet；Hot water line 12, are connected to the outlet of described heat exchanger 1；Water return pipeline 9, is connected to described water inlet；Hot water line 12, water return pipeline 9 can connect formation circulation line with heat exchanger 1；For the burner 2 that the water in described heat exchanger is heated, described burner 2 has the first output power range and the second output power range；Described first output power range is less than 4 kilowatts；The water pump 3 connected with described heat exchanger 1；The control device 4 being connected with described burner 2 and described water pump 3.
Described control device 4 is for being under warm-up cycle pattern at described gas-fired water heater, generate for being supplied to the first control signal that described water pump 3 flows to drive the water in described heat exchanger 1, generate for being supplied to described burner 2 the second control signal run under the first output power range by described burner 2.Described fuel gas water heating system has warm-up cycle pattern, and described warm-up cycle pattern includes: described control device 4 controls described water pump 3 and drives the water in described heat exchanger 1 to flow, and controls described burner 2 and is in the first mode of operation.
Fuel gas water heating system in this utility model embodiment has warm-up cycle pattern.Described fuel gas water heating system is when being in warm-up cycle pattern, and the control device 4 in fuel gas water heating system can make water pump 3 drive the water in heat exchanger 1 to flow, thus being circulated with the water in circulation line by the water in heat exchanger 1.And the control device 4 in fuel gas water heating system can also make burner 2 run in the first operation mode, i.e. make burner 2 run in relatively low output (such as 1-3 kilowatt) situation.By said structure, gas-fired water heater system is in warm-up cycle process, when the water temperature convergence preheating target temperature of the water in the water temperature or heat exchanger 1 of the water in guaranteeing circulation line, water pump 3 can also be made to be continuously in running status, it is possible to so that burner 2 is continuously in running status.The fluctuation of the water temperature that the water temperature of the water in such circulation line or the water in heat exchanger 1 can also maintain preheating target temperature, the water in circulation line or the water in heat exchanger 1 more for a long time is also less.Due to burner 2 when igniting and when water pump 3 starts the sound that sends of gas-fired water heater higher, and adopt the gas-fired water heater in the embodiment of the present application to decrease the ignition times of burner 2 and the number of starts of water pump 3, thus also just correspondingly reduce the sound that fuel gas water heating system sends in warm-up cycle process.
Described control device 4 can be under warm-up cycle pattern at described fuel gas water heating system, generate and be supplied to described burner by the 3rd control signal in the water temp. heating of the water in described heat exchanger to preset range, when the water temperature of the water in described heat exchanger reaches preset range, described control device generates and is supplied to the described burner the second control signal for being run under the first output power range by described burner, so that the water temperature of the water in described heat exchanger tends to preheating target temperature.In the present embodiment, further, described control device 4 controls described burner 2 and heats the water temperature of the water in described heat exchanger 1 when reaching in preset range, described control device 4 controls described burner 2 and in this first operative mode the water in described heat exchanger 1 is heated, and makes the water temperature of the water in described heat exchanger 1 tend to preheating target temperature.Namely, under warm-up cycle mode situation, after the water temperature of the water in the water temperature of the water in heat exchanger 1 or circulation line can be brought up to preset range by burner 2 under the first mode of operation or the second mode of operation, again in the first operation mode, the water in heat exchanger 1 or the water in circulation line is made to tend to preheating target temperature gradually.
In the present embodiment, fuel gas water heating system can also include water-use model, under this water-use model, described control device 4 can control described burner 2 and be in the second mode of operation, the i.e. now output of burner 2 relatively big (as more than 4KW), at least one water mixing valve 11 is in open mode simultaneously, and the water mixing valve 11 that user can pass through to open gets water from user side.Under this water-use model, in order to make the leaving water temperature of user side tend to use water target temperature, control device 4 and control the output of described burner 2 and make the leaving water temperature of heat exchanger 1 tend to using water target temperature.It is said that in general, with water target temperature higher than user's design temperature.Such as, when user's design temperature is 43 degrees Celsius, in order to make water mixing valve 11 that the water temperature of mixed for hot and cold water water is met user's design temperature, can be slightly higher with water target temperature, for instance, can be 46 degrees Celsius with water target temperature.
In the present embodiment, fuel gas water heating system is after being switched to water-use model from preheating mode, described variable frequency pump increases described preset flow to middle flow, and described control device 4 controls the output of described burner 2 makes the leaving water temperature of described heat exchanger 1 tend to using water target temperature；Described variable frequency pump continues the flow of inlet water increasing described middle flow to described water pump 3, and described control device 4 controls the output of described burner 2 makes the leaving water temperature of described heat exchanger 1 tend to using water target temperature.In order to the stable in outlet water temperature of described heat exchanger 1 is being used water target temperature, the output of burner 2 needs the operating flux with variable frequency pump to match.The output of burner 2 has certain retardance with mating of the operating flux of variable frequency pump simultaneously.nullIn order to reduce the fluctuation of the leaving water temperature of heat exchanger 1 as far as possible，Preset flow is increased in the process of the water pump 3 operating flux when water-use model at variable frequency pump，One or more middle flow can be set，Control device 4 control water pump 3 from relatively low flow bring up to closest to and higher than one of its flow in the middle of after flow，Control device 4 and improve the output of burner 2，The output making this burner 2 is flux matched with the intermediate flow of water pump 3，When the output of this burner 2 and the intermediate flow of water pump 3 flux matched after，Further the flow of water pump 3 can be brought up to the middle flow of the next one or bring up to the operating flux of water-use model，And improve the output of this burner 2 further，The output of burner 2 is mated with the operating flux of flow in the middle of the next of water pump 3 or water-use model.
In the present embodiment, after described fuel gas water heating system is switched to described warm-up cycle pattern from water-use model, described control device 4 controls described variable frequency pump and reduces flow to middle flow, and described control device 4 controls the output of described burner 2 makes the leaving water temperature of described heat exchanger tend to described preheating target temperature；Described variable frequency pump continues to reduce described middle flow to described preset flow, and described control device 4 controls the output of described burner 2 makes the leaving water temperature of described heat exchanger tend to preheating target temperature.
Certain, in other optional embodiments, for instance when fuel gas water heating system get user there is bigger water intaking probability within this period time, fuel gas water heating system control device 4 it is also possible that variable frequency pump runs under the operating flux of its water-use model.Certain, in other optional embodiments, for instance when fuel gas water heating system get user there is only small water intaking probability within this period time, the control device 4 of fuel gas water heating system can also make variable frequency pump out of service, and burner 2 stops heating.Preferably, in order to the temperature of the water in circulation line is detected, it is possible to arrange temperature-detecting device on the water inlet of heat exchanger 1 and water outlet or other circulation lines.In order to the flow of the water in circulation line is detected, it is possible to arrange flow detector in the outlet or other circulation lines of water pump 3.
Fig. 2 illustrates a specific embodiment of fuel gas water heating system in the application, with reference to shown in Fig. 2, described fuel gas water heating system includes water mixing valve 11, described water mixing valve 11 has hot water end and cold water end, the hot water end of described water mixing valve 11 connects with hot water line 12, and the cold water end of described water mixing valve 11 can be connected with water source by cold water pipe 13；Heat exchanger 1 water inlet connects with water source；Also include control portion 10, described hot water line 12 can be connected with described cold water pipe 13 when described control portion 10 opens；Described cold water pipe 13, described control portion 10 form described water return pipeline 9；After described water pump 3 starts, described control portion 10 opens, so that the connection of described circulation line.Single tube cruise instant heating gas heater in this embodiment, is for the situation not being provided with water return pipeline 9 in user family.That is, this fuel gas water heating system can make hot water line 12, control portion 10, cold water pipe 13 and heat exchanger 1 form circulation line by control portion 10, thus realizing warm-up cycle pattern.This mode farthest solves without the return pipe user needs for instant-heating and outlet hot function.Preferably, control portion 10 can open based on the pressure signal that water pump 3 provides.When this fuel gas water heating system stops water-use model and is prepared to enter into warm-up cycle pattern, water pump 3 is to control portion 10 output pressure signal, thus being opened in control portion 10 so that circulation line connects.
In the present embodiment, described control portion 10 is constant pressure switch device, and described constant pressure switch device includes: valve body, is internally provided with runner；Described runner has inlet and outlet；Can the closeouts of magnetic and part can be inhaled mutually；Described closeouts has the described import of partition and the block-up position of described outlet and the connection position connecting described import and described outlet of interval predeterminable range；Described closeouts along described import to described Way out both sides pressure reduction more than described closeouts and described inhale between part captivation time, described closeouts can move to described connection position；Described closeouts along described import to described Way out both sides pressure reduction less than described closeouts and described inhale between part captivation time, described closeouts can move to described block-up position.
By said structure, described control device 4 controls described variable frequency pump to the lasting startup pressure (such as 0.04-0.1MPA) of described constant pressure switch device one, under the continuous action starting pressure, closeouts along described import to the pressure reduction of both sides of described Way out more than described closeouts and the described captivation inhaled between part, closeouts could continue to move towards connection position, thus arriving connection position, constant pressure switch device is opened, to connect closed circuit.After constant pressure switch device opens (i.e. closed circuit connect), in order to relatively low and work under energy consumption comparatively aptly, described control device 4 controls described variable frequency pump and drives the water in described heat exchanger 1 to run with preset flow.Owing to closeouts needs under lasting startup pressure effect, constant pressure switch device could be opened, so can avoid the mistakes such as the error starting that causes because of descaling line pressure fluctuation etc..
In one preferred embodiment, this fuel gas water heating system includes multiple water mixing valve 11, and the two ends in described control portion 10 directly connect with the hot water end of the water mixing valve 11 farthest apart from described heat exchanger 1 and cold water end respectively.So when water return pipeline 9 is connected, it is possible to make to be circulated the water in maximum hot water lines 12 and cold water pipe 13, and make the longest in route of circulation line.When opening any one water mixing valve 11, the leaving water temperature of each corresponding user side can also comparatively meet the requirements.
With reference to shown in Fig. 3, in another embodiment, already installed with water return pipeline 9 in user family, namely water return pipeline 9 is arranged between hot water end and the described water inlet of described water mixing valve 11.
Shown in Fig. 1, the embodiment of the present application discloses a kind of gas heater, and this gas heater includes the heat exchanger 1 with water inlet and outlet；For the burner 2 that the water in described heat exchanger 1 is heated；Described burner 2 has the first output power range and the second output power range；Described first output power range is less than 4 kilowatts；The stepless time adjustment blower fan 5 in described burner 2 downstream it is arranged on along combustion product gases direction；The water pump 3 connected with described heat exchanger 1；The control device 4 being connected with described burner 2, described water pump 3 and described stepless time adjustment blower fan 5.
Described control device 4 is for being under warm-up cycle pattern at described gas heater, generate for being supplied to the first control signal that described water pump 3 flows to drive the water in described heat exchanger 1, generate for being supplied to described burner 2 the second control signal run under the first output power range by described burner 2, generate for being supplied to the 6th control signal that described stepless time adjustment blower fan 5 runs under the rotating speed mated with described first output power range.Described gas heater has warm-up cycle pattern, described warm-up cycle pattern includes: described control device 4 controls described water pump 3 and drives the water in described heat exchanger 1 to flow, controlling described burner 2 and be in the first mode of operation, the first mode of operation of the rotating speed and described burner 2 that control described stepless time adjustment blower fan 5 matches.
As previously mentioned, described control device 4 can control described burner 2 and heat the water temperature of the water in described heat exchanger 1 when reaching preset range, described control device 4 controls described burner 2 and in this first operative mode the water in described heat exchanger 1 is heated, and makes the water temperature of the water in described heat exchanger 1 tend to preheating target temperature.
When burner 2 is in the first mode of operation, namely, when the output of this burner 2 is relatively low, control device 4 and can control the rotating speed of this stepless time adjustment blower fan 5, that is, control this stepless time adjustment blower fan 5 to run under the rotating speed mated with the output of this burner 2, thus when meeting the air quantity condition needed for burner 2, reduce the sound owing to stepless time adjustment blower fan 5 sends, to reduce the sound that this gas heater sends under warm-up cycle pattern further as far as possible.Concrete running, can be called referring to name: a kind of low-noise gas instantaneous water heater, the patent No. is the patent of ZL201210051343.1, described control device 4 controls described burner and reaches preset range with the water temperature of the water in the sets of burners described heat exchanger of heating in applicable low decibel burning load region, and the burning of the rotating speed and described applicable sets of burners controlling described stepless time adjustment blower fan 5 matches.
Concrete, stepless time adjustment blower fan 5 in the application may be located at the top of this gas heater, and stepless time adjustment blower fan 5 is upper odd test blower fan.Due to combustion product gases self expanse, therefore under identical burning load, the rotation speed of fan of upper convulsion technology is relatively low, and the combustion noise of generation is relatively low accordingly, makes better user experience.
In one preferred embodiment, described burner 2 includes at least two groups can be controlled separately or concurrently in the sets of burners of low decibel burning load zonal combustion, described control device 4 controls described burner 2 and reaches preset range with the water temperature of the water in the sets of burners described heat exchanger 1 of heating in applicable low decibel burning load region, and the burning of the rotating speed and described applicable sets of burners controlling described stepless time adjustment blower fan 5 matches.When sets of burners is burnt with different compound modes, the burning load region of every kind of compound mode is not quite similar because sets of burners quantity is different, the noise region that the burning load region of every kind of compound mode is corresponding is roughly the same, take burning load region corresponding to various combination mode low noise region and constitute gas instantaneous water heater continuous print low noise burning load region, the noise that gas instantaneous water heater runs in this low noise burning load region can be made to remain in very low noise range, also the noise that user no longer runs because of gas instantaneous water heater when water for kitchen use is made to feel noisy, achieve beyond thought effect.Meanwhile, the required air capacity of burning of the rotating speed and described applicable sets of burners that control described stepless time adjustment blower fan 5 matches.
The embodiment of the present application also discloses a kind of hot water apparatus, and this hot water apparatus includes the heat exchanger with water inlet and outlet；For the heater (not shown) that the water in described heat exchanger is heated, the heating power of described heater can less than 4KW；The water pump 3 connected with described heat exchanger；The control device 4 being connected with described heater and described water pump 3.
Described control device 4 is for being under warm-up cycle pattern at described hot water apparatus, generate for being supplied to the first control signal that described water pump 3 flows to drive the water in described heat exchanger 1, generate for being supplied to described heater and by the heating power of described heater less than the second control signal run in the scope of 4KW.Described hot water apparatus has warm-up cycle pattern, described warm-up cycle pattern includes: described control device 4 controls described water pump 3 and drives the water in described heat exchanger 1 to flow, controlling described heater and be in the first mode of operation, the heating power of described first mode of operation is less than 4KW.
In the present embodiment, this hot water apparatus is electric heater, and this heater is electric heater unit.Certain, in other optional embodiments, hot water apparatus can also have the hot water apparatus with heating function of same or like effect for other.
Each embodiment in this specification all adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar part mutually referring to.
Above-described embodiment only for technology of the present utility model design and feature are described, its object is to allow person skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this.All equivalences made according to this utility model spirit change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (46)
1. a gas-fired water heater, it is characterised in that described gas-fired water heater includes:
There is the heat exchanger of water inlet and outlet；
For the burner that the water in described heat exchanger is heated, described burner has the first output power range and the second output power range；
Described first output power range is less than 4 kilowatts；
The water pump connected with described heat exchanger；
The control device being connected with described burner and described water pump.
2. gas-fired water heater according to claim 1, it is characterized in that, described control device is for being under warm-up cycle pattern at described gas-fired water heater, generate for being supplied to the first control signal that described water pump flows to drive the water in described heat exchanger, generate for being supplied to described burner the second control signal run under the first output power range by described burner.
3. gas-fired water heater according to claim 1, it is characterised in that described gas-fired water heater includes housing, described water pump is positioned at described housing, and the housing diameter of described water pump is less than 50mm.
4. gas-fired water heater according to claim 1, it is characterised in that described pump capacity≤5L/min.
5. gas-fired water heater according to claim 2, it is characterised in that described water pump is variable frequency pump.
6. gas-fired water heater according to claim 5, it is characterised in that when described gas-fired water heater is in described warm-up cycle pattern, described control device controls described water pump and drives the water in described heat exchanger to run with preset flow.
7. gas-fired water heater according to claim 6, it is characterised in that described preset flow range for 2-5L/min.
8. gas-fired water heater according to claim 1, it is characterised in that the sound that described gas-fired water heater sends is lower than 46 decibels.
9. gas-fired water heater according to claim 3, it is characterised in that be provided with cushion between described housing and described water pump.
10. gas-fired water heater according to claim 1, it is characterised in that be provided with damping part between the pipeline and the described water pump that are connected with described water pump.
11. gas-fired water heater according to claim 10, it is characterised in that described damping part is flexible pipe.
12. gas-fired water heater according to claim 1, it is characterised in that described first output power range is 1-3KW.
13. gas-fired water heater according to claim 1, it is characterised in that described burner includes allotter, and described allotter has at least two chamber, the chamber of at least one described allotter is corresponding with the fire row of one or two or three burners.
14. gas-fired water heater according to claim 1, it is characterised in that described gas-fired water heater also includes exhaust fume collecting hood, the material of described exhaust fume collecting hood is rustless steel.
15. gas-fired water heater according to claim 2, it is characterized in that, described control device can be under warm-up cycle pattern at described gas-fired water heater, generate and be supplied to described burner by the 3rd control signal in the water temp. heating of the water in described heat exchanger to preset range, when the water temperature of the water in described heat exchanger reaches preset range, described control device generates and is supplied to the described burner the second control signal for being run under the first output power range by described burner, so that the water temperature of the water in described heat exchanger tends to preheating target temperature.
16. gas-fired water heater according to claim 15, it is characterised in that the described control device described burner of control heats the water temperature of the water in described heat exchanger in described first output power range and reaches in preset range.
17. gas-fired water heater according to claim 15, it is characterised in that the described control device described burner of control heats the water temperature of the water in described heat exchanger in described second output power range and reaches in preset range.
18. gas-fired water heater according to claim 15, it is characterised in that the maximum of described preset range is lower than described preheating target temperature.
19. gas-fired water heater according to claim 15, it is characterised in that described preheating target temperature is equal to or less than using water target temperature.
20. gas-fired water heater according to claim 1, it is characterised in that described control device receives user and uses rule, described control device uses rule based on described user, generates the 4th control signal for being supplied to described burner.
21. a fuel gas water heating system, it is characterised in that described fuel gas water heating system includes:
There is the heat exchanger of water inlet and outlet；
Described outlet is connected to the hot water line of water end (W.E.)；
Described water inlet is connected to the water return pipeline of water end (W.E.)；
Hot water line, water return pipeline and heat exchanger can connect formation circulation line；
For the burner that the water in described heat exchanger is heated, described burner has the first output power range and the second output power range；Described first output power range is less than 4 kilowatts；
The water pump connected with described heat exchanger；
The control device being connected with described burner and described water pump.
22. fuel gas water heating system according to claim 21, it is characterized in that, described control device is for being under warm-up cycle pattern at described gas-fired water heater, generate for being supplied to the first control signal that described water pump flows to drive the water in described heat exchanger, generate for being supplied to described burner the second control signal run under the first output power range by described burner.
23. fuel gas water heating system according to claim 22, it is characterized in that, described control device can be under warm-up cycle pattern at described fuel gas water heating system, generate and be supplied to described burner by the 3rd control signal in the water temp. heating of the water in described heat exchanger to preset range, when the water temperature of the water in described heat exchanger reaches preset range, described control device generates and is supplied to the described burner the second control signal for being run under the first output power range by described burner, so that the water temperature of the water in described heat exchanger tends to preheating target temperature.
24. fuel gas water heating system according to claim 23, it is characterized in that, after water temperature in described circulation line reaches preheating target temperature, described control device controls described burner continuous service in described first output power range, to maintain the temperature of the water in described circulation line.
25. fuel gas water heating system according to claim 23, it is characterised in that the described control device described burner of control heats the water temperature of the water in described heat exchanger in described second output power range and reaches in preset range.
26. fuel gas water heating system according to claim 22, it is characterised in that the described control device described burner of control heats the water temperature of the water in described heat exchanger in described first output power range and reaches in preset range.
27. fuel gas water heating system according to claim 22, it is characterised in that described water pump is variable frequency pump.
28. fuel gas water heating system according to claim 27, it is characterized in that, described control device is for being under water-use model at described fuel gas water heating system, generate the 5th control signal that the output for being supplied to described burner is corresponding, so that the leaving water temperature of described heat exchanger tends to using water target temperature.
29. fuel gas water heating system according to claim 28, it is characterized in that, after described fuel gas water heating system is switched to described water-use model from warm-up cycle pattern, described variable frequency pump increases preset flow to middle flow, and described control device controls the output of described burner makes the leaving water temperature of described heat exchanger tend to using water target temperature；Described variable frequency pump continues the flow of inlet water increasing described middle flow to described water pump, and described control device controls the output of described burner makes the leaving water temperature of described heat exchanger tend to using water target temperature.
30. fuel gas water heating system according to claim 28, it is characterized in that, after described fuel gas water heating system is transformed into described warm-up cycle pattern from described water-use model, described control device controls described variable frequency pump and reduces flow to middle flow, and described control device controls the output of described burner makes the leaving water temperature of described heat exchanger tend to described preheating target temperature；Described variable frequency pump continues to reduce described middle flow to preset flow, and described control device controls the output of described burner makes the leaving water temperature of described heat exchanger tend to preheating target temperature.
31. fuel gas water heating system according to claim 21, it is characterised in that described fuel gas water heating system includes
Water mixing valve, described water mixing valve has hot water end and cold water end, and the hot water end of described water mixing valve connects with hot-water line, and the cold water end of described water mixing valve can be connected with water source by cold water pipe；
Heat exchanger water inlet connects with water source；
Also include control portion, can being connected with described cold water pipe by described hot-water line when described control portion opens；
Described cold water pipe, described control portion form described water return pipeline；
When, after described starting mode of pump, described control portion opens, so that the connection of described circulation line.
32. fuel gas water heating system according to claim 31, it is characterised in that can provide for its pressure signal opened to described control portion during described water pump operation.
33. fuel gas water heating system according to claim 32, it is characterised in that described control portion is constant pressure switch device, described constant pressure switch device includes: valve body, is internally provided with runner；Described runner has inlet and outlet；
Can the closeouts of magnetic and part can be inhaled mutually；
Described closeouts has the described import of partition and the block-up position of described outlet and the connection position connecting described import and described outlet of interval predeterminable range；
Described closeouts along described import to described Way out both sides pressure reduction more than described closeouts and described inhale between part captivation time, described closeouts can move to described connection position；
Described closeouts along described import to described Way out both sides pressure reduction less than described closeouts and described inhale between part captivation time, described closeouts can move to described block-up position.
34. fuel gas water heating system according to claim 33, it is characterized in that, described water pump is variable frequency pump, described fuel gas water heating system includes water-use model, described water-use model includes: described control device controls the output of described burner makes the leaving water temperature of described heat exchanger tend to using water target temperature, when described water-use model switches to warm-up cycle pattern, described control device controls described variable frequency pump and starts pressure to open described constant pressure switch device to described constant pressure switch device, after described constant pressure switch device is opened, described control device controls described variable frequency pump and drives the water in described heat exchanger to run with preset flow.
35. fuel gas water heating system according to claim 34, it is characterised in that the startup pressure of described constant pressure switch device is 0.04-0.1Mpa.
36. fuel gas water heating system according to claim 31, it is characterised in that this fuel gas water heating system includes multiple water mixing valve, and the two ends in described control portion directly connect with the hot water end of the water mixing valve farthest apart from described heat exchanger and cold water end respectively.
37. fuel gas water heating system according to claim 22, it is characterised in that described fuel gas water heating system includes
Water mixing valve, described water mixing valve has hot water end and cold water end, and the hot water end of described water mixing valve connects with hot-water line, and the cold water end of described water mixing valve can be connected with water source by cold water pipe；
Described water return pipeline is arranged between the hot water end of described water mixing valve and described water inlet.
38. fuel gas water heating system according to claim 22, it is characterised in that described fuel gas water heating system includes being arranged on the temperature-detecting device on described circulation line and flow detector.
39. a gas heater, it is characterised in that this gas heater includes:
There is the heat exchanger of water inlet and outlet；
For the burner that the water in described heat exchanger is heated；Described burner has the first mode of operation of the first output power range and the second mode of operation of the second output power range；
Described first output power range is less than 4 kilowatts；
The stepless time adjustment blower fan in described burner downstream it is arranged on along combustion product gases direction；
The water pump connected with described heat exchanger；
The control device being connected with described burner, described water pump and described stepless time adjustment blower fan.
40. the gas heater according to claim 39, it is characterized in that, described control device is for being under warm-up cycle pattern at described gas heater, generate for being supplied to the first control signal that described water pump flows to drive the water in described heat exchanger, generate for being supplied to described burner the second control signal run under the first output power range by described burner, generate for being supplied to the 6th control signal that described stepless time adjustment blower fan runs under the rotating speed mated with described first output power range.
41. gas heater according to claim 40, it is characterized in that, when the water temperature of the water in the described control device control described burner described heat exchanger of heating reaches preset range, described control device controls described burner and in described first output power range, the water in described heat exchanger is heated, so that the water temperature of the water in described heat exchanger tends to preheating target temperature.
42. gas heater according to claim 40, it is characterized in that, described burner includes at least two groups can be controlled separately or concurrently in the sets of burners of low decibel burning load zonal combustion, described control device controls described burner and reaches preset range with the water temperature of the water in the sets of burners described heat exchanger of heating in applicable low decibel burning load region, and the burning of the rotating speed and described applicable sets of burners controlling described stepless time adjustment blower fan matches.
43. gas heater according to claim 40, it is characterized in that, described water pump is variable frequency pump, described control device controls described variable frequency pump and drives the water in described heat exchanger to flow with preset flow, controls described burner and heats the water temperature of the water in described heat exchanger in the first operation mode and tend to preheating target temperature.
44. a hot water apparatus, it is characterised in that this hot water apparatus includes:
There is the heat exchanger of water inlet and outlet；
For the heater that the water in described heat exchanger is heated, the heating power of described heater can less than 4KW；
The water pump connected with described heat exchanger；
The control device being connected with described heater and described water pump.
45. hot water apparatus according to claim 44, it is characterized in that, described control device is for being under warm-up cycle pattern at described hot water apparatus, generate for being supplied to the first control signal that described water pump flows to drive the water in described heat exchanger, generate for being supplied to described heater and by the heating power of described heater less than the second control signal run in the scope of 4KW.
46. hot water apparatus according to claim 44, it is characterised in that described heater is electric heater unit.
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| CN201620105145.2U CN205383768U (en) | 2016-02-01 | 2016-02-01 | Gas hot water system , gas hot -water heating system, gas heater and hot water system |
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| CN201620105145.2U CN205383768U (en) | 2016-02-01 | 2016-02-01 | Gas hot water system , gas hot -water heating system, gas heater and hot water system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105546803A (en) * | 2016-02-01 | 2016-05-04 | 艾欧史密斯(中国)热水器有限公司 | Gas-fired water heating device, gas-fired water heating system, gas-fired water heater and water heating device |
| CN106642729A (en) * | 2017-01-18 | 2017-05-10 | 广东万家乐燃气具有限公司 | Gas water heater and method for adjusting hot water temperature of gas water heater |
| CN113587449A (en) * | 2021-08-24 | 2021-11-02 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heating system and control method thereof |
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2016
- 2016-02-01 CN CN201620105145.2U patent/CN205383768U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105546803A (en) * | 2016-02-01 | 2016-05-04 | 艾欧史密斯(中国)热水器有限公司 | Gas-fired water heating device, gas-fired water heating system, gas-fired water heater and water heating device |
| WO2017133241A1 (en) * | 2016-02-01 | 2017-08-10 | 艾欧史密斯(中国)热水器有限公司 | Gas water heating device, gas water heating system, gas water heater and water heating device |
| CN105546803B (en) * | 2016-02-01 | 2019-12-20 | 艾欧史密斯(中国)热水器有限公司 | Gas water heating device, gas water heating system, gas water heater and water heating device |
| CN106642729A (en) * | 2017-01-18 | 2017-05-10 | 广东万家乐燃气具有限公司 | Gas water heater and method for adjusting hot water temperature of gas water heater |
| CN106642729B (en) * | 2017-01-18 | 2022-03-25 | 广东万家乐燃气具有限公司 | Water outlet temperature adjusting method for gas water heater and gas water heater |
| CN113587449A (en) * | 2021-08-24 | 2021-11-02 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heating system and control method thereof |
| CN113587449B (en) * | 2021-08-24 | 2022-12-20 | 广东万和新电气股份有限公司 | Zero-cold-water gas water heating system and control method thereof |
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