CN203420196U - Constant temperature control device of emulsified asphalt tank of asphalt distributing paver - Google Patents
Constant temperature control device of emulsified asphalt tank of asphalt distributing paver Download PDFInfo
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- CN203420196U CN203420196U CN201320530987.9U CN201320530987U CN203420196U CN 203420196 U CN203420196 U CN 203420196U CN 201320530987 U CN201320530987 U CN 201320530987U CN 203420196 U CN203420196 U CN 203420196U
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Abstract
The utility model discloses a constant temperature control device of an emulsified asphalt tank of an asphalt distributing paver. According to a constant temperature control technology, by adopting a temperature sensing and controlling module by means of a method of controlling high voltage by low voltage, the temperature of the emulsified asphalt is displayed in real time and start and stop of heating rods are automatically controlled, so that temperature stabilization is ensured. The constant temperature control device consists of a controller, a touch display, a temperature sensor, a relay, a three-phase alternating generator, a circuit breaker, a three-phase alternating contactor, a rotary switch, an indicating switch, a heating rod set and a temperature switch. The constant temperature control device is an import component of the asphalt distributing paver and can ensure normal work and operation of the machine and prevent material waste, thereby providing guarantee to the construction quality and the economic benefit.
Description
Technical field
The technical solution of the utility model belongs to pitch sprinkling paver field, is specifically related to a kind of temperature control equipment and control method thereof of pitch sprinkling paver mulseal tank.
Background technology
Pitch sprinkling paver is a kind of modified emulsifying asphalt is synchronizeed spread and paved pavement construction machinery with bituminous mixture of realizing, and has and store the tank body that mulseal is used on it, and volume is liter more than 2000.Emulsified bituminous materials generally need heat and remain at 60-70 ℃ of temperature and carries out spraying operation, and the benefit of constructing at this temperature has 2 points, and the one, viscosity is low, easily spray, and the 2nd, be sprayed onto fast, the high infiltration of de-emulsification speed behind ground; Emulsified bituminous materials can not contact more than 100 ℃ high temperature before sprinkling, and at this temperature, mulseal can breakdown of emulsion solidifies, and not only cannot spray, even can blocking pipe when serious, damage equipment;
In the past, this kind of equipment adopted conduction oil technology to be incubated material in mulseal tank more, its principle be by heating conduction oil, by the heat of oil body contactless be transmitted in mulseal tank.This technology cannot regulate temperature in asphalt tank in real time, only can carry out limited insulation to the existing temperature of material; And the method needs the extra parts such as conduction oil casing, pump and pipeline that increase, and causes difficult arrangement, has taken limited space, make unitary construction become complicated, and cost is higher;
In addition, this kind of equipment also adopted heating and the insulation that realizes material in asphalt tank by the method for gas heating, by arrange combustion pipe in asphalt tank, the heat of fuel gas buring was passed to emulsified bituminous materials.The method of this heating and insulation easily produces the inequality of being heated, and particularly the material near combustion pipe is subject to the damage of high temperature breakdown of emulsion, and the energy utilization rate of gas heating is low, not environmental protection.
Summary of the invention
The technical problems to be solved in the utility model is: for spraying the specific (special) requirements of emulsified bituminous materials to temperature in construction, and above-mentioned the deficiencies in the prior art, the utility model provides a kind of thermostatically-controlled equipment and control method thereof of pitch sprinkling paver mulseal tank.
This thermostatically-controlled equipment, by TEMP and temperature control modules, uses low-voltage to control high-tension method, shows in real time mulseal temperature the start and stop of control heating rod automatically, guarantees heating effect and temperature stabilization; This thermostatically-controlled equipment is comprised of controller, touch control display, temperature pick up, relay, threephase alternator, line breaker, three-phase ac contactor, rotary switch, indicator lamp, heating rod group, temperature switch.Heating execution unit is the Novel heating rod of nine one group, and the heating power of its single heating rod unit length is low, and the intensive heating rod group forming had both met the needs of heating, can realize flexible temperature rise again, avoids that calorific value is excessive in short-term; Meanwhile, the inner integrated temperature switch of heating rod group, can control separately the start and stop of heating rod group as control assembly, play the effect that prevents hot-spot.This thermostatic control technology and device control accuracy are high, safety and stability, and simple in structure, and cost is low, and the feature of environmental protection is good, for construction quality and economic benefit provide guarantee.
The concrete operations scheme that the utility model adopts is:
A kind of thermostatically-controlled equipment of pitch sprinkling paver mulseal tank, by touch control display, temperature pick up, controller, temperature switch, relay, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group, formed, from line breaker, separated two groups of high-pressure work circuit; Wherein temperature switch, relay, burner on light, three-phase ac contactor, heating rod group respectively have two, form respectively one group; Two groups is relation in parallel, shares touch control display, temperature pick up, controller, threephase alternator, line breaker, rotary switch, power supply indicator; It is characterized in that, wherein said touch control display, temperature pick up, controller, temperature switch, relay are low-voltage control assembly: touch control display is connected with controller, and communication with it, are used for showing in real time Current Temperatures and input temp setting value; Controller is connected with temperature switch with temperature pick up, and controller detects material temperature in asphalt tank by temperature pick up, and responsible program is carried out and output heating signal; Two-way heating control signal is passed through respectively temperature switch, then is connected with relay respectively, and temperature switch and heating rod group integrate, and near temperature Real-Time Monitoring heating rod group switching centre point, when local excess Temperature, can disconnect heating control signal; Relay plays the transitional function of low voltage control high pressure, the control signal of coming from temperature switch is connected with the coil of relay, and the constant open contact of relay access high-pressure work circuit, one end of contact is connected with rotary switch, the other end is connected with the coil of three-phase ac contactor, so just can realize two-way low-voltage control signal and pass through respectively temperature switch, and by relay, two groups of high-pressure work circuit be connected respectively.
According to an aspect of the present utility model, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group are high voltage operation parts: threephase alternator is connected with line breaker, its diesel engine by machine itself provides power, output three-phase alternating current, three live wires of three-phase alternating current access respectively in three wiring holes of line breaker one end, phase voltage 230V, line voltage 400V; Line breaker has two ends, and wherein one end is connected with generator, and the other end is divided into two-way, is connected respectively with the contact of three-phase ac contactor, and two-way is relation in parallel, and line breaker shields, and is mainly to prevent that operating circuit from causing accident because of short circuit; Three-phase ac contactor is comprised of coil and constant open contact two parts, and coil-end is connected with rotary switch by relay, constant open contact one end connecting breaker, and the other end connects heating rod group and burner on light; Rotary switch is battery main switch, has three constant open contacts, and except two constant open contacts are connected with relay, another one contact is connected with power supply indicator; Indicator lamp is divided into two kinds of power supply indicator and burner on lights, opening power master switch, and red power supply indicator is lighted, if now three-phase ac contactor constant open contact is closed, heating rod group starts heating, green indicating lamp is corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
According to an aspect of the present utility model, described electrically heated rod group comprises junction box, adpting flange, internal thread short steel pipes, temperature switch, heating barred body, clip, together with wherein junction box is bolted with adpting flange, internal thread short steel pipes is welded on the center of adpting flange, and temperature switch is arranged on heating rod Zu center by internal thread short steel pipes; Heating barred body is that circular U-shaped heating rod forms by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every U-shaped heating rod equates.
According to an aspect of the present utility model, this thermostatically-controlled equipment can regulate temperature in mulseal tank in real time, has heating and heat insulating functions.
According to another aspect of the present utility model, a kind of control method of applying above-mentioned pitch sprinkling paver mulseal tank thermostatically-controlled equipment, mainly comprise the following steps: first need to check whether diesel engine speed reaches required rotating speed, if do not meet speed conditions, heating signal will be closed automatically, as meet speed conditions then control system check in asphalt tank, whether liquid level condition meets, if liquid does not reach the height at heating rod group and temperature pick up parts place, temperature pick up cannot accurately record fluid temperature, when rotating speed and liquid level condition all meet, if now heater switch is opened, controller will contrast the setting value transmitting from touch control display and the real-time detected value recording from temperature pick up, when being less than or equal to setting value, detected value subtracts return difference value, controller can be exported heating signal, when detected value is greater than setting value, subtracts return difference value but be less than setting value, it is constant that controller will maintain standing state, i.e. just still opening of being out of heating signal now, heating signal is that just continuing of closing closed, when detected value is more than or equal to setting value, controller will cut out heating signal, above control procedure is iterative cycles in director demon is carried out.
This thermostatically-controlled equipment automaticity is high, can regulate in real time temperature in mulseal tank to reach desirable requirement, there is heating and heat insulating functions, when the material in protection mulseal tank is avoided high temperature damage, be also conducive to spray construction and road surface bonding; And the control accuracy of this constant-temperature control method is high, good stability is simple in structure, and cost is low, and it utilizes electric energy heating, has also improved the feature of environmental protection; To sum up, this utility model is the important component part of pitch sprinkling paver, can guarantee the normal operation of machine, prevents the waste of material, for construction quality and economic benefit provide guarantee.
Accompanying drawing explanation
To describe now as preferred but nonrestrictive embodiment of the present utility model, these and other features of the present utility model, aspect and advantage will become apparent when reading as follows detailed description with reference to accompanying drawing, wherein:
Fig. 1 is the circuit theory schematic diagram of the thermostatically-controlled equipment of the utility model pitch sprinkling paver mulseal tank;
Fig. 2 is the thermostatic control schematic flow sheet of the thermostatically-controlled equipment of the utility model pitch sprinkling paver mulseal tank;
Fig. 3 is the electrically heated rod group front view of the thermostatically-controlled equipment of the utility model pitch sprinkling paver mulseal tank;
Fig. 4 be in Fig. 3 electrically heated rod group A to sectional view;
Fig. 5 be in Fig. 3 electrically heated rod group B to sectional view.
In figure: A1 is touch control display, B1 is temperature pick up, and P1 is controller, and S1, S2 are temperature switch, KA1, KA2 are relay, G is threephase alternator, and QF1 is line breaker, and S3 is rotary switch, L3 is power supply indicator, KD1, KD2 are three-phase ac contactor, and L1, L2 are burner on light, and R1, R2 are heating rod group; 1, junction box; 2, adpting flange; 3, internal thread short steel pipes; 4, temperature switch; 5, heating barred body; 6, clip;
The specific embodiment
The following description is only exemplary and be not in order to limit the disclosure, application or purposes in essence.Should be understood that, in whole accompanying drawings, corresponding Reference numeral represents identical or corresponding parts and feature.
Below in conjunction with accompanying drawing, the utility model is described in further details.
As shown in Figure 1, the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank of the present utility model is by touch control display A1, temperature pick up B1, controller P1, temperature switch S1, S2, relay K A1, KA2, threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L1, L2, L3, three-phase ac contactor KD1, KD2, heating rod group R1, R2 form, and are divided into low-voltage control circuit and high-pressure work circuit.
As can be known from Fig. 1, from controller P1, send two-way low-voltage control signal simultaneously, from circuit breaker Q F1, separate two groups of high-pressure work circuit: temperature switch S1, relay K A1, indicator lamp L1, three-phase ac contactor KD1, heating rod group R1 form one group; Temperature switch S2, relay K A2, indicator lamp L2, three-phase ac contactor KD2, heating rod group R2 form another group.Two groups is relation in parallel, shares touch control display A1, temperature pick up B1, controller P1, threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L3.Two groups work alone, and are controlled separately respectively by two path control signal, and wherein heating rod group R1, R2 connect by flange respectively, and fix with bolt, are arranged in asphalt tank.These two groups of equipments are independent of each other, and one group is damaged another group and can work on, and improved reliability and heating uniformity, and the heating power of heating rod group R1, R2 has better met the demand for heat of 2000 liters of large volume tank bodies.
Wherein said touch control display A1, temperature pick up B1, controller P1, temperature switch S1, S2, relay K A1, KA2 are low-voltage control assembly: touch control display A1 is connected with controller P1, and communication with it, be used for showing in real time Current Temperatures and input temp setting value; Controller P1 is connected with temperature switch S1, S2 with temperature pick up B1, and controller P1 detects material temperature in asphalt tank by temperature pick up B1, and responsible program is carried out and output heating signal; Two-way heating control signal is passed through respectively temperature switch S1, S2, be connected with relay K A1, KA2 respectively, temperature switch S1, S2 and heating rod group R1, R2 integrate again, near temperature Real-Time Monitoring heating rod group switching centre point, when local excess Temperature, can disconnect heating control signal; Relay K A1, KA2 play the transitional function of low voltage control high pressure, the control signal of coming from temperature switch is connected with the coil of relay, and the constant open contact of relay access high-pressure work circuit, one end of contact is connected with rotary switch S3, the other end is connected with the coil of three-phase ac contactor KD1, KD2, so just can realize two-way low-voltage control signal and pass through respectively temperature switch S1, S2, and by relay K A1, KA2, two groups of high-pressure work circuit be connected respectively.
Threephase alternator G, circuit breaker Q F1, rotary switch S3, indicator lamp L1, L2, L3, three-phase ac contactor KD1, KD2, heating rod group R1, R2 are high voltage operation parts: threephase alternator G is connected with circuit breaker Q F1, its diesel engine by machine itself provides power, output three-phase alternating current, three live wires of three-phase alternating current access respectively in three wiring holes of circuit breaker Q F1 one end, phase voltage 230V, line voltage 400V; Circuit breaker Q F1 has two ends, and wherein one end is connected with generator, and the other end is divided into two-way, be connected with the contact of three-phase ac contactor KD1, KD2 respectively, two-way is relation in parallel, and circuit breaker Q F1 shields, and is mainly to prevent that operating circuit from causing accident because of short circuit; Three-phase ac contactor KD1, KD2 are comprised of coil and constant open contact two parts, and coil-end is connected with rotary switch S3 by relay K A1, KA2's, constant open contact one end connecting breaker QF1, and the other end connects heating rod group R1, R2 and indicator lamp L1, L2; Rotary switch S3 is battery main switch, has three constant open contacts, and except two constant open contacts are connected with relay K A1, KA2, another one contact is connected with indicator lamp L3; Indicator lamp is divided into power supply indicator L3 and burner on light L1, two kinds of L2, opening power master switch S3, red power supply indicator is lighted L3, if now three-phase ac contactor KD1, KD2 constant open contact are closed, heating rod group R1, R2 start heating, green indicating lamp L1, L2 is corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
Heating rod group R1, R2 are the crucial execution units of this device, and heating function is realized by it, and its concrete ingredient is introduced as follows:
As shown in Figure 3 and Figure 4, described electrically heated rod group comprises junction box 1, adpting flange 2, internal thread short steel pipes 3, temperature switch 4, heating barred body 5, clip 6, together with wherein junction box 1 is bolted with adpting flange 2, internal thread short steel pipes 3 is welded on the center of adpting flange 2, and temperature switch 4 is arranged on heating rod Zu center by internal thread short steel pipes 3; Heating barred body 5 is that circular U-shaped heating rod forms by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every U-shaped heating rod equates.
As shown in Figure 5, the U-shaped heating rod two ends of heating barred body 5 are passed respectively adpting flange 2 and are welded together with it, and the curved end of the U-shaped heating rod of heating barred body 5 is fixing by clip 6; One side in junction box 1 has 18 Binding post/studs to be connected with 18 wiring of heating barred body 5, and every three heating rods form one group, adopt parallel way, nut crimping wiring; Nine heating rods form three groups altogether, and the wiring of three groups is electrically connected to AC three-phase in junction box 1, and every group is used an electricity mutually wherein, and because every group of load is consistent, whole heating barred body 5 load electricity consumptions form three-phase equilibriums.The design of this electricity consumption three-phase equilibrium, has protected generating equipment, reaches the object of Electrical Safety; meanwhile, guaranteeing, under the prerequisite of large capacity tank body heating power demand, to reduce the power of single heating rod; avoid that calorific value is large in short-term, realized the flexible temperature rise of mulseal.
So-called flexible temperature rise is special to be proposed the sensitiveness of temperature for emulsified bituminous materials, refers to the temperature uphill process of the non-violent formula of liquid in tank body, fluent material is not caused to any damage and fracture.The flexible temperature rise of electrically heated rod group of the present utility model is mainly reflected in following two aspects: on the one hand, time when single heating rod reaches heat balance is shorter, and barred body surface temperature is stabilized in 90 ℃ of left and right very soon; On the other hand, the contact area of whole electrically heated rod group and liquid is large, and margin of power foot, by the interchange of heat between barred body and liquid, realizes the rising of fluid temperature.
Electrically heated rod group is evenly distributed with certain rule on circular flange; Nine heating rods are divided into four kinds of different models according to the difference of length and bend radius, but watt level is the same, and are all single-phase electricity mode of operation, and every like this three root knots are combined, and form three-phase equilibrium during work, play the effect of safety and protection device; Two outlet of nine circular heating rods being all welded on flange, the power of single heating rod through calculating in detail and testing, can guarantee that single heating rod realizes flexible temperature rise with Length Ratio, barred body surface temperature can be over 100 ℃; Near temperature temperature switch S1, S2 Real-Time Monitoring heating rod group switching centre point, controls separately heating rod start and stop, has avoided hot-spot.
Again shown in Fig. 2, provide the control flow schematic diagram of this thermostatically-controlled equipment, first control system needs to check whether diesel engine speed reaches required rotating speed, if do not meet speed conditions, heating signal will be closed automatically, if reason is to provide the alternating current generator of power not reach rated speed by diesel engine, whole high-pressure work circuit does not just reach rated voltage, its consequence can be damaged the parts such as A.C. contactor, also can affect the heating of heating rod group and the effect being incubated;
Then control system also needs to check in asphalt tank, whether liquid level condition meets, if liquid does not reach the height at heating rod group and temperature pick up parts place, temperature pick up cannot accurately record fluid temperature, this can cause control system to continue to send the danger of heating signal, cause heating rod group to continue energising dry combustion method, when serious, can damage parts;
When rotating speed and liquid level condition all meet, if now heater switch is opened, controller will contrast the setting value transmitting from touch control display and the real-time detected value recording from temperature pick up, when being less than or equal to setting value, detected value subtracts return difference value, controller can be exported heating signal, when detected value is greater than setting value, subtracts return difference value but be less than setting value, it is constant that controller will maintain standing state, i.e. just still opening of being out of heating signal now, heating signal is that just continuing of closing closed, when detected value is more than or equal to setting value, controller will cut out heating signal, whole process iterative cycles in director demon is carried out above.In above process, introduced temperature return difference and controlled, object is to prevent system oscillation.
Claims (4)
1. the thermostatically-controlled equipment of a pitch sprinkling paver mulseal tank, by touch control display, temperature pick up, controller, temperature switch, relay, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group, formed, from line breaker, separated two groups of high-pressure work circuit; Temperature switch, relay, burner on light, three-phase ac contactor, heating rod group respectively have two, form respectively one group; Two groups is relation in parallel and shared touch control display, temperature pick up, controller, threephase alternator, line breaker, rotary switch, power supply indicator, it is characterized in that, wherein said touch control display is electrically connected to controller and communication with it; Controller is connected with temperature switch with temperature pick up, and controller detects material temperature in asphalt tank by temperature pick up, and responsible program is carried out and output heating control signal; Heating control signal is divided into two-way, it passes through respectively temperature switch, be connected with relay respectively again, temperature switch and heating rod group integrate, the constant open contact access high-pressure work circuit of relay, one end of contact is connected with rotary switch, and the other end is connected with the coil of three-phase ac contactor.
2. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1, it is characterized in that, threephase alternator, line breaker, rotary switch, indicator lamp, three-phase ac contactor, heating rod group are high voltage operation parts: threephase alternator is connected with line breaker, its diesel engine by machine itself provides power, output three-phase alternating current, three live wires of three-phase alternating current access respectively in three wiring holes of line breaker one end, phase voltage 230V, line voltage 400V; Line breaker has two ends, wherein one end is connected with generator, the other end is divided into two-way, be connected with the contact of three-phase ac contactor respectively, two-way is relation in parallel, and three-phase ac contactor is comprised of coil and constant open contact two parts, and coil-end is connected with rotary switch by relay, constant open contact one end connecting breaker, the other end connects heating rod group and burner on light; Rotary switch is battery main switch, has three constant open contacts, and except two constant open contacts are connected with relay, another one contact is connected with power supply indicator; Indicator lamp is divided into two kinds of power supply indicator and burner on lights, opening power master switch, and red power supply indicator is lighted, if now three-phase ac contactor constant open contact is closed, heating rod group starts heating, green indicating lamp is corresponding to be lighted; Three-phase ac contactor is for controlling the break-make of main operating circuit.
3. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1 or 2, it is characterized in that, described electrically heated rod group comprises junction box, adpting flange, internal thread short steel pipes, temperature switch, heating barred body, clip, together with wherein junction box is bolted with adpting flange, internal thread short steel pipes is welded on the center of adpting flange, and temperature switch is arranged on heating rod Zu center by internal thread short steel pipes; Heating barred body is that circular U-shaped heating rod forms by nine cross sections, and wiring is drawn at the two ends of U-shaped heating rod; The power of every U-shaped heating rod equates.
4. the thermostatically-controlled equipment of pitch sprinkling paver mulseal tank as claimed in claim 1 or 2, is characterized in that, this thermostatically-controlled equipment can regulate temperature in mulseal tank in real time, has heating and insulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530987.9U CN203420196U (en) | 2013-08-27 | 2013-08-27 | Constant temperature control device of emulsified asphalt tank of asphalt distributing paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320530987.9U CN203420196U (en) | 2013-08-27 | 2013-08-27 | Constant temperature control device of emulsified asphalt tank of asphalt distributing paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203420196U true CN203420196U (en) | 2014-02-05 |
Family
ID=50019296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320530987.9U Expired - Lifetime CN203420196U (en) | 2013-08-27 | 2013-08-27 | Constant temperature control device of emulsified asphalt tank of asphalt distributing paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203420196U (en) |
-
2013
- 2013-08-27 CN CN201320530987.9U patent/CN203420196U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140205 |