CN100434838C - Air conditioner controlling system and constant flow electric valve - Google Patents
Air conditioner controlling system and constant flow electric valve Download PDFInfo
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- CN100434838C CN100434838C CNB2004100849096A CN200410084909A CN100434838C CN 100434838 C CN100434838 C CN 100434838C CN B2004100849096 A CNB2004100849096 A CN B2004100849096A CN 200410084909 A CN200410084909 A CN 200410084909A CN 100434838 C CN100434838 C CN 100434838C
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Abstract
The constant flow motor operated valve is constructed of an electrically operated control valve and a constant flow-rate apparatus 12 removably incorporated into a valve body 13 of the electrically operated valve 11. The constant flow-rate apparatus 12 is constituted of a tubular holder 30, a ring-like orifice plate 31 comprising an elastic body which is fitted and inserted into the holder 30 and a retaining ring 32 comprising C-ring which prevents the orifice plate 31 from falling from the holder 30. It also removably fixes in the valve body 13 of the electrically operated control valve 11 by means of piping connecting means 21.
Description
Technical field
This invention relates to according to the invention that is incorporated with the constant flow electric valve of constant flow device in difference control motor-driven valve (being arranged on to the motor-driven valve on the passage of the air conditioner supply heat source water) air-conditioner control system that opens and closes of indoor temperature and design temperature and the valve body at motor-driven valve.
Background technology
In the past,, the fan coil of use device (FCU: the air-conditioner control system air conditioner that heat-exchange tube and fan are housed) is arranged as this air-conditioner control system.(for example, reference literature 1 (spy opens flat 10-176858 communique)).
Figure 11 is illustrated in the critical piece of the air-conditioner control system described in the document 1.In same figure, the 1st, FCU, the 2nd, air conditioning control device (FCU controller), the 3rd, setting apparatus, the 4th, hot water pipe, 4-1 are water inlet pipes, 4-2 is a return pipe, the 5th, the motor-driven valve (magnetic valve) that on the water inlet pipe 4-1 of hot water pipe 4, is provided with, the 6th, detect the inflow temperature detecting sensor of temperature that flows to the hot and cold water (heat source water) of FCU1 by motor-driven valve, the 7th, detect the temperature sensor of accepting from the indoor temperature of FCU1 air inlet.In addition, CHS represents water inlet in same figure, and CHR represents backwater.
FCU1 possesses hot and cold water is supplied with in acceptance from hot water pipe 4 hot and cold water coil pipe 1-1 and fan 1-2.FCU is with controller 2, memory 2-2, the sensor input circuit 2-3, fan output circuit 2-4, valve output circuit 2-5 and the interface circuit 2-6 that links to each other with setting apparatus 3 that have microprocessor (MPU) 2-1, be made of RAM or ROM etc.Memory 3-2, the operated key 3-3 that setting apparatus 3 has microprocessor (MPU) 3-1, be made of RAM or ROM, liquid crystal display part 3-4 and the interface circuit 3-5 that links to each other with controller 2 with FCU.
In this air-conditioner control system, the FCU microprocessor 2-1 of controller 2, the design temperature tsp that reaches setting apparatus 3 according to the detected temperatures that obtains from indoor temperature transmitter 7 (indoor temperature) tpv is such, by the switch (ON/OFF) of control motor-driven valve 5 and the rotating speed of fan 1-2, control just flows to hot and cold water quantity delivered and the air quantity of fan of FCU1.
In general, the flow-control of FCU1 is following to be carried out, Yi Bian promptly in order to obtain the highest cooling-heating room efficient, Yi Bian carry out best indoor temperature control, and flowing into the hot and cold water of stipulating flow to FCU1, the quantity delivered of the hot and cold water of this regulation flow is controlled by the switch of motor-driven valve 5.Therefore, usually as shown in figure 12, motor-driven valve 5 and constant flow rate valve (constant flow device) 8 uses together, is not subjected to the restriction of primary side pressure oscillation by this constant flow rate valve 8, and the hot and cold water flow (the hot and cold water flow that flows through during motor-driven valve 5 standard-sized sheets) that keeps supplying with FCU1 is constant.Such constant flow device 8 is former just all proposals.For example, document 2 (opening flat 2-9906 communique in fact), document 3 (spy opens flat 11-270743 communique), document 4 (spy opens the 2002-351549 communique).
The constant flow device that document 2 is announced is by constituting as lower member: urceolus, be used in filter cylinder that cylindrical shaft that this urceolus inflow entrance side end becomes radial a plurality of rib will be arranged on the axle center part of this urceolus from axial profile connects and composes one, can above-mentioned axle with being free to slide coating needle-valve, face toward ozzle in the flow export side opening portion that this needle-valve be darted at above-mentioned urceolus, with above-mentioned needle-valve to from the spring of ozzle away from direction (inflow side) backup.
In mansion instrumentation equipment, air-conditioning equipment possesses: pump, refrigerator (thermal source), FCU and control panel etc.Its piping method has direct return water mode and contrary return water mode.
(directly return water mode)
Directly return water mode is shown in Figure 13 (a), because being arranged on the return pipe 4-2 of the FCU1 of each layer all is directly connected on the return pipe 9, the floor of mansion is high more, pressure is low more, in addition, because the pressure reduction of each layer is all different, so each laminar flow is gone into the flow that the flow of the hot and cold water of FCU1 can not be up to specification.So directly return water mode all will be provided with constant flow device 8 on the water inlet pipe 4-1 at FCU1 at each layer shown in Figure 13 (b), not limited by the differential pressure of each layer, keep the constant flow of the hot and cold water of supply FCU1.
(contrary return water mode)
Contrary return water mode, shown in Figure 14 (a), the return pipe 4-2 of the FCU1 of each layer is connected with secondary return pipe 9 ', and the upper end of this secondary return pipe 9 ' is connected with main water return tube 9 high-rise, and therefore the pressure reduction in each layer can keep constant., in the platform number of the FCU1 of each layer or ability not simultaneously, need be according to its capacity adjustment flow.Therefore, as Figure 14 (b) even shown in contrary return water mode also on the water inlet pipe 4-1 of each layer FCU, constant flow rate valve 8 be set, could be according to platform number or the capacity adjustment flow of the FCU1 of each layer.
Also have, in Figure 13 and Figure 14, P is a pump, and G is a heat source machine.Direct return water mode by constant flow rate valve 8 is set and contrary return water mode, the flow that can keep flowing to the hot and cold water of FCU1 is the steady state value of stipulating, thereby obtains the highest cooling-heating room efficient.By the ON/OFF of motor-driven valve 5, do not use the floor of FCU1 to close motor-driven valve 5, thereby stop hot and cold water in addition, save the energy.
In the air-conditioner control system that this motor-driven valve 5 and constant flow device 8 use together, in the construction of mansion air-conditioning equipment, usually automation field is different with the apparatus field constructor, the motor-driven valve 5 that carries out the operating side of flow-control carries out the scene by the constructor of automation field and installs, on the other hand, constant flow device 8 carries out the scene installation by the constructor of apparatus field.That is to say that motor-driven valve 5 and constant flow rate valve 8 are installed respectively by different operators respectively in air-conditioner control system in the past.
There is following problem in the air-conditioner control system in the past:
(1) for per 1 FCU1 motor-driven valve 5 and constant flow rate valve 8 must be set respectively, installation exercise and maintenance cost time.
(2) motor-driven valve 5 and constant flow device 8 are installed respectively, and these two kinds of valve mounting distance sizes are by installing the back decision, during the factory delivery, and can not perfect forecast motor-driven valve 5 and constant flow rate valve 8 combined influence that control brings to air-conditioning when installing at the scene.
(3) owing to can not perfect forecast control the combined influence that brings, laggard Xingqi must be installed at the scene confirm operation air-conditioning, and, when this affirmation operation is taken a lot of work very much, the misgivings of the design discharge of not reaching, underfed and flow surplus are arranged.
Summary of the invention
Goal of the invention of the present invention is:
(1) in order to carry out installation exercise and maintenance easilier,
(2) do not need to take industry really as after the on-the-spot installation of motor-driven valve and constant flow device,
(3) design discharge be can realize, underfed or flow surplus prevented.
In order to achieve the above object, the present invention has following scheme:
Above-mentioned constant flow device possesses: tubular support and embed the ring-type restricting orifice that is made of elastomer in this support and prevent the back-up ring that above-mentioned restricting orifice comes off from above-mentioned support.
Above-mentioned constant flow device is fixed in the above-mentioned valve body replaceably by pipeline bindiny mechanism.
The valve body of said electric valve possesses from the bellmouth of a distolateral peristome towards the downstream hole enlargement, above-mentioned support, on periphery, have the collar flange body that has with the taper surface at above-mentioned bellmouth angle of inclination about equally, above-mentioned pipeline bindiny mechanism has pipe joint and union nut, connect above-mentioned valve body and aforementioned tube joint by above-mentioned union nut, push above-mentioned body flange by the aforementioned tube joint thus, above-mentioned taper surface is crimped onto in the above-mentioned bellmouth.
In addition, above-mentioned back-up ring constitutes with C type circle, and above-mentioned support has the annular groove of the above-mentioned C type of setting-in circle on inner peripheral surface.
Above-mentioned support has towards the hole of upstream side curve reaming, and above-mentioned restricting orifice has the throttle orifice littler than the diameter in the hole of above-mentioned support.
Above-mentioned support has straight hole, above-mentioned restricting orifice has than the little throttle orifice of the diameter in the hole of above-mentioned support with at the coconnected conical recess of this throttle orifice, the recess of above-mentioned restricting orifice and above-mentioned hole relative to each other above-mentioned restricting orifice is embedded into above-mentioned support.
Above-mentioned constant flow device possesses: tubular support and embed ring-type restricting orifice in this support, that be made of elastomer and prevent the back-up ring that above-mentioned restricting orifice comes off from above-mentioned support.
Above-mentioned constant flow device is fixed in the above-mentioned valve body replaceably by pipeline bindiny mechanism.
The valve body of said electric valve has from the bellmouth of a distolateral peristome towards the downstream hole enlargement, above-mentioned support, on periphery, possesses the annular lip body that has with the taper surface at above-mentioned bellmouth angle of inclination about equally, above-mentioned pipeline bindiny mechanism, possess pipe joint and union nut, connect above-mentioned valve body and aforementioned tube joint by above-mentioned union nut, push above-mentioned body flange, above-mentioned taper surface is crimped onto in the above-mentioned bellmouth by the aforementioned tube joint.
Above-mentioned back-up ring is that C type circle constitutes, and above-mentioned support has the annular groove of the above-mentioned C type of setting-in circle on inner peripheral surface.
Above-mentioned support has towards the hole of upstream side curve hole enlargement, and above-mentioned restricting orifice has the throttle orifice littler than the diameter in the hole of above-mentioned support.
Above-mentioned support has straight hole, above-mentioned restricting orifice, have than the little throttle orifice of the bore dia of above-mentioned support with at the coconnected conical recess of this throttle orifice, the recess of above-mentioned restricting orifice and the hole of above-mentioned support relative to each other, above-mentioned restricting orifice is embedded in the above-mentioned support.
Description of drawings
Fig. 1 is the profile that is illustrated in an embodiment of the motor-driven valve (constant flow electric valve) that uses in the air-conditioner control system relevant with the present invention.
Fig. 2 is the profile of the constant flow device in the constant flow electric valve of packing into.
Fig. 3 is the main position amplification profile of the state of the restricting orifice of expression in the constant flow device when zero load and when adding pressure reduction.
Fig. 4 is the pie graph of critical piece that the air-conditioner control system of constant flow electric valve has been used in expression.
Fig. 5 is the figure of the piping of the air-conditioning equipment of the expression direct return water mode of employing that used constant flow electric valve and the air-conditioning equipment that adopts contrary return water mode.
Fig. 6 is the figure of the discharge characteristic of expression constant flow electric valve
Fig. 7 is the profile of other embodiment of expression constant flow device.
Fig. 8 is that restricting orifice among other embodiment of expression constant flow device is at the main position amplification profile of zero load and state when adding differential pressure.
Fig. 9 is the figure that the control situation of the valve opening of motor-operated control valve in the air-conditioner control system of constant flow electric valve (motor-driven valve+constant flow device) and room temperature has been used in expression.
Figure 10 is the figure that is illustrated in the control situation of the valve opening of the motor-operated control valve in the air-conditioner control system that only uses motor-driven valve and room temperature.
Figure 11 is the pie graph of the major part of the air-conditioner control system shown in the expression document 1.
Figure 12 is the pie graph that the air-conditioner control system major part of motor-driven valve and constant flow rate valve has been used in expression.
Figure 13 is that the figure of motor-driven valve with the piping of the air-conditioning equipment of the direct return water mode that has used motor-driven valve and constant flow rate valve used in expression.
Figure 14 is that the figure of motor-driven valve with the piping of the air-conditioning equipment of the contrary return water mode that has used motor-driven valve and constant flow rate valve used in expression.
Symbol description among the figure
1-FCU (fan coil device), 2-air conditioning control device (FCU controller), 3-setting apparatus, 4-hot water pipe, the 4-1-feed pipe, 4-2-return pipe, 7-indoor temperature transmitter, 10-motor-driven valve (constant flow electric valve), the 11-motor-operated control valve, 12-constant flow device, 13-valve body, 21-pipeline connector, the 22-bellmouth, 30-support, 31-restricting orifice, 32-back-up ring, the 36-body flange, 36a-taper surface, 40-throttle orifice, 41-annular groove, the 45-pipe joint, 46-union nut, G, G
1-gap, P-pump, G-heat source machine.
The specific embodiment
Below, with reference to accompanying drawing, describe the present invention in detail.
In Fig. 1, the whole motor-driven valve of representing with symbol 10 (to call constant flow electric valve in the following text) is made of motor-operated control valve 11 and constant flow device 12.Fig. 4 has represented to use the formation of the air-conditioner control system of this constant flow electric valve 10.In this air-conditioner control system and in the past air-conditioner control system was as shown in figure 12 compared, and had omitted constant flow device 8 as can be known.The figure of the piping of the air-conditioning equipment of the direct return water mode of employing that has been to use this constant flow electric valve 10 of Fig. 5 (a) expression.Fig. 5 (b) is that the figure of the employing of this constant flow electric valve 10 against the piping of the air-conditioning equipment of return water mode used in expression.In the piping of these air-conditioning equipments, comparison diagram 5 (a) and Figure 13 (b), Fig. 5 (b) and Figure 14 (b) have omitted constant flow device 8 as can be known.
In constant flow electric valve 10, motor-operated control valve 11 is the switch valves that were made of former well-known power type ball valve, it is by constituting with the lower part: the valve body 13 that straight tube constitutes, the spherical valve body that can rotate freely 15 of packing into by a pair of annular ring 14,14 in these valve body 13 central interior, connect at the upper central of the valve body 13 cylindrical portion 13A of prominent one of establishing upwards, the valve shaft 16 of valve body 15 is installed in the inner and allows and be arranged on valve shaft 16 on the cylindrical portion 13A can come and go rotation in 90 ° angular range operator 17 etc.The upstream side peristome 18 of valve body 13 connects primary side pipeline 19, in downstream peristome 20 inside, constant flow device 12 is packed into by pipe jointer 21 removedly.In addition, in downstream peristome 20, form the bellmouth 22 of hole enlargement laterally, and be connected with secondary side pipeline 23 by pipe jointer 21.At the straight opening 24 of ball 15 central authorities formation with the axis normal of valve shaft 16.
Among Fig. 2 and Fig. 3, the back-up ring 32 that restricting orifice 31 that constant flow device 12 is embedded in by the support 30 of tubular, at this support 30 and anti-restricting orifice 31 here come off constitutes.Therefore this constant flow device 12 textural have do not need needle-valve and helical spring advantage.
Restricting orifice 31 is formed by rubber (for example NBR) elastomeric material, is the aperture circlet shape of external diameter than the big footpath hole portion 34 of support 30, in central authorities the circular orifice (throttle orifice) 40 littler than the aperture of path hole portion 33 is arranged, and peripheral part is supported by stage portion 35.
Back-up ring 32 is the C type rings that formed by stainless steel etc., can be embedded in the annular groove 41 that forms on the inner peripheral surface of big footpath hole portion 34 of support 30 with loading and unloading.Between this back-up ring 32 and restricting orifice 31, set enough clearance G.Clearance G between this gap G and big footpath hole portion 34 and the restricting orifice 31 is set
1, make the restricting orifice 31 can free strain by pressure reduction
In Fig. 1, pipe jointer 21 is made up of tube-shaped tube joint 45 and 46 two parts of union nut.Pipe joint 45 forms the tapered thread 48 that screws downstream pipeline 23 at the prominent collar flange body 47 of one of establishing of the upstream-side-end of outer peripheral face in end of downstream side.Union nut 46 connects valve body 13 and pipe joint 45,, is attached on the body flange 47 from the downstream on the periphery of pipe joint 45 by setting-in, forms internal thread 50 on inner headed face.The external screw thread 51 that forms on the downstream outer peripheral face of this internal thread 50 and valve body 13 is screwed in together, pipe joint 45 is pressed on the downstream open end of valve body 13.In addition, thus the body flange 36 of pipe joint 45 extrusion racks 30 taper surface 36a is crimped onto in the bellmouth 22 of valve body 13.
In the constant flow electric valve 10 that is made of this spline structure, the restricting orifice 31 of constant flow device 12 is living strain because fluid is cut down output, thereby controls the flow that flows to the fluid 4 in the downstream pipeline 23 by constant flow electric valve 10, makes it keep constant.That is to say, open motor-operated control valve 11, fluid 4 is flowed through behind the constant flow device 12, the upstream side pressure P of constant flow device 12
1With the downstream pressure P
2(P
1＞P
2) the generation pressure differential.Therefore, restricting orifice 31 is according to its pressure reduction (P
1-P
2) nature during from zero load shown in Fig. 3 solid line diminishes throttle orifice 40 apertures to the strain that produces in the downstream shown in the double dot dash line, control the flow of the fluid 4 of the constant flow device 12 of flowing through and make its maintenance constant by reducing flow path area.
In the action of the constant flow of constant flow device 12, back-up ring 32 is provided with across enough clearance G ground at restricting orifice 40 upstream sides, and between the periphery of the inner peripheral surface of big footpath hole portion 34 and restricting orifice 31, suitable clearance G is set
1Even therefore restricting orifice 31 is shown in double dot dash line, central portion path hole portion 33 sides produce strain, and peripheral part tilts to back-up ring 32 sides, and restricting orifice 31 can not touch back-up ring 32 and the big directly inner peripheral surface of hole portion 34 yet.Thereby can not retrain the free strain of restricting orifice 31, performance constant flow function.
Fig. 6 is the figure of the discharge characteristic of expression constant flow electric valve 10.In same figure, transverse axis is represented the upstream side pressure P
1With the downstream pressure P
2Between pressure reduction (MPa), the longitudinal axis represent the to flow through flow (L/min) of constant flow device 12.Curve C 1 is the discharge characteristic of the small-sized constant flow device 12 of per minute 6L (liter), and curve C 2 is discharge characteristics of the medium-sized constant flow device 12 of per minute 12L (liter), and curve C 3 is discharge characteristics of the large-scale constant flow device 12 of per minute 24L (liter).From then on figure can understand, whichsoever constant flow device 12 can both be controlled the flow constant.
In addition, in this constant flow electric valve 10, constant flow device 12 does not possess needle-valve and helical spring, therefore can not produce vibration or noise owing to the change of pressure, can make low noise type constant flow electric valve 10.Noise (at valve rear 1m, apart from the position finding of pipe level face 1m) when having measured constant flow electric valve 10 actions in passing is below the pressure differential deltap P=0.2MPa, below the NC35.Also have, the noise measuring environment is with reference to the IEC standard.The constant flow rate valve of in document 2～4, announcing in the past, no matter it is any, all be to adopt by helical spring backup needle-valve to flatten the mode that weighs with liquid, to the pressure oscillation sensitivity, after in the mansion air-conditioning equipment, using, there is easily the pressure oscillation that causes by other valves and produces vibration, thereby produce the problem of noise.
In addition, this constant flow electric valve 10 is constant flow device 12 to be packed into become one in the motor-operated control valve 11, and therefore on-the-spot installation can once be carried out by the constructor of automation field or apparatus field, and installation exercise and maintenance are easily.
Particularly the distance between motor-operated control valve 11 and the constant flow device 12 was determined by the design phase, so can grasp the on-the-spot combined influence that control brings to air-conditioning when constant current motor-driven valve 10 is installed in advance, did not need to take industry really as after on-the-spot the installation.In addition, can carry out flow-control, the problem of underfed or flow surplus can not occur according to the flow of design.
In addition, in this constant flow electric valve 10, the taper surface 36a of body flange 36 is crimped onto in the bellmouth 22, but so constant flow device 12 with respect to valve body 13 automatic alignings.
In addition, after back-up ring 32 took out from support 30, restricting orifice 31 just can take out from support 30 and to be easy to more renew, and was convenient to maintenance.In addition, also by changing the flow that constant flow device 12 changes regulation as required.
In addition, motor-operated control valve 11 and constant flow device 12 are integrated, can be omitted on the pipe arrangement the required parts of constant flow device 12 are installed.Compare with the situation on being respectively installed to pipe, pipeline installation exercise simple, at a low price can be provided.
Fig. 7 represents the profile of another example of constant flow device, and Fig. 8 is that the expression restricting orifice is when zero load and the amplification profile at the main position of the state when adding pressure reduction.
In this constant flow device 63, the path hole portion of support 30 33 forms straight hole, and face 60 central authorities in the downstream of restricting orifice 31 form the conical recess 61 that is communicated with throttle orifice 40, peripheral part formation tabular surface.In addition, the path hole portion 33 of the recess 61 of restricting orifice 31 and support 30 is embedded into restricting orifice 31 in the support 30 relative to each other.Therefore restricting orifice 31, the outer peripheral portion that is made of the tabular surface around recess 61 is supported by the stage portion 35 of support 30.Other structure is identical with above-mentioned constant flow device 12.Can control the flow constant of secondary side in the constant flow device 63 that this structure constitutes equally with constant flow device 12.
Fig. 9 is the figure that is illustrated in the control situation of the valve opening of the motor-operated control valve 11 in the air-conditioner control system (Fig. 4) that uses constant flow electric valve 10 and room temperature.When the FCU1 feeding cold water, indoor temperature tpv is higher than design temperature tsp, and (tpv＞tsp), motor-operated control valve 11 is opened.Indoor temperature tpv is lower than design temperature tsp, and (tpv＜tsp), motor-operated control valve 11 is closed.When FCU1 supplied with hot water, indoor temperature tpv is lower than design temperature tsp, and (tpv＜tsp), motor-operated control valve 11 was opened.Indoor temperature tpv is higher than design temperature tsp, and (tpv＞tsp), motor-operated control valve 11 is closed.
When this room temperature control, the flow (flow of the hot and cold water that flows through during motor-operated control valve 11 standard-sized sheets) of hot and cold water of motor-operated control valve 11 of flowing through keeps constant by constant flow device 12 control, not only obtain the highest cooling-heating room efficient, and can carry out best room temperature control, can realize stable temperature control and comfortableness.In addition, the switching of the ON/OFF of motor-operated control valve 11 action reaches the Min. that needs, thereby has prolonged the regular event life-span of constant flow electric valve 10.
In contrast, do not pack constant flow device 12 into and have only the situation of motor-operated control valve 11, that is to say, in air-conditioner control system shown in Figure 12, remove in the formation (formation of Figure 11) of constant flow device 12, can not keep the flowing through constant flow of hot and cold water of motor-driven valve 5, the flow surplus of hot and cold water sometimes during motor-driven valve 5 standard-sized sheets can not be carried out stable temperature control, the room temperature plussage also increases, and has lost comfortableness.In addition, owing to the ON/OFF that said electric valve 5 must repeat, shortened the regular event life-span (with reference to Figure 10) of motor-driven valve 5.
Also having, as mentioned above, use the electric switching valve that is made of the bilateral ball valve as motor-operated control valve 11, but be not limited thereto, also can be other switch valves such as butterfly valve, or the valve with discharge characteristic.
In addition,, be not limited to pipe joint 45 and union nut 46, also can adopt the pipeline bindiny mechanism of other suitable configurations for pipe jointer 21.
Also have, constant flow device 12 is not limited to install in the downstream peristome of valve body 13 of motor-operated control valve 11, also can install in the upstream side peristome.
In addition, as mentioned above, used the constant flow device 12 of restricting orifice 31 to pack in the constant flow electric valve 10 constant flow device of other modes of also can packing into into.
(invention effect)
According to the present invention, because motor-driven valve and constant flow device are one, so motor-driven valve and constant flow Distance between the device just determined in design, fabrication stage, when factory's shipment, just can grasp existing Motor-driven valve and the constant flow device combined influence that control brings to air-conditioning during field installation motor-driven valve. Therefore, existing The field does not need to confirm operation after installing, and can realize the flow of design, can prevent underfed or flow Superfluous.
In addition, in the present invention, constant flow device is installed to the interior stream of valve body of motor-driven valve replaceably Maintenance is convenient in road section. In addition, by changing constant flow device, also can change as required regulation Flow.
In addition, in the present invention, constant flow device is to change according to the pressure of fluid to make restricting orifice elasticity Distortion thus by the varying aperture of restricting orifice, is controlled the flow that passes into the secondary side fluid and is made it Keep constant, thereby, do not need needle-valve and helical spring, simple in structure, and, reduce or prevent The generation of noise.
In addition, in the present invention, union nut is unclamped, after pipe joint unloads from valve body, just Can easily from valve body, take out constant flow device. Be crimped onto valve body by the taper surface with support Bellmouth in, but constant flow device is with respect to the valve body automatic aligning.
In addition, C type circle prevents that restricting orifice from coming off from support, takes out C type circle from support, just Can take out restricting orifice changes.
Claims (12)
1, a kind of air-conditioner control system, having air conditioner (1), be arranged on to this air conditioner (1) and supply with motor-driven valve (10) on the path of heat source water, control according to the difference of indoor temperature and design temperature in the air-conditioner control system of controlling organization (2) of switch of said electric valve (10), it is characterized in that
Said electric valve (10) has the constant flow device (12) in the stream portion that is installed in replaceably in the valve body (13),
Above-mentioned constant flow device (12) possesses:
Tubular support (30), with the ring-type restricting orifice (31) that constitutes by elastomer that embeds in this support (30), prevent the back-up ring (32) that above-mentioned restricting orifice (31) comes off and have the annular groove (41) of the above-mentioned back-up ring of setting-in (32) at above-mentioned support (30) inner peripheral surface from above-mentioned support (30).
2, according to the air-conditioner control system described in the claim 1, it is characterized in that,
Above-mentioned constant flow device (12) is fixed in the above-mentioned valve body (13) replaceably by pipeline bindiny mechanism (21).
3, according to the air-conditioner control system described in the claim 2, it is characterized in that,
The valve body (13) of said electric valve (10) possesses from the bellmouth (22) of a distolateral peristome (20) towards the downstream hole enlargement,
Above-mentioned support (30) has the collar flange body (36) of the taper surface (36a) with the angle of inclination that equates with above-mentioned bellmouth (22) on periphery,
Above-mentioned pipeline bindiny mechanism (21) has pipe joint (45) and union nut (46),
Connect above-mentioned valve body (13) and aforementioned tube joint (45) by above-mentioned union nut (46), push above-mentioned body flange (36) by aforementioned tube joint (45) thus, above-mentioned taper surface (36a) is crimped onto in the above-mentioned bellmouth (22).
4, according to the air-conditioner control system described in the claim 1, it is characterized in that,
Above-mentioned back-up ring (32) is to constitute with C type circle,
Above-mentioned support (30) has the annular groove (41) of the above-mentioned C type of setting-in circle (32) on inner peripheral surface.
5, according to the air-conditioner control system described in the claim 1, it is characterized in that,
Above-mentioned support (30) has towards the hole (33) of upstream side curve hole enlargement,
Above-mentioned restricting orifice (31) has the little throttle orifice (40) of diameter than the hole (33) of above-mentioned support (30).
6, according to the air-conditioner control system described in the claim 1, it is characterized in that,
Above-mentioned support (30) has straight hole (33),
Above-mentioned restricting orifice (31) has than little throttle orifice (40) of the diameter in the hole (33) of above-mentioned support (30) and the conical recess (61) that is communicated with of throttle orifice (40) therewith,
The recess (61) of above-mentioned restricting orifice (31) and the hole (33) of above-mentioned support (30) relative to each other above-mentioned restricting orifice (31) is embedded into above-mentioned support (30).
7, a kind of constant flow electric valve is characterized in that,
Possess the constant flow device (12) in the stream in the valve body of motor-driven valve (10) and this motor-driven valve of packing into,
Above-mentioned constant flow device (12), have: tubular support (30), with embed ring-type restricting orifice (31) in this support (30), that constitute by elastomer, prevent the back-up ring (32) that above-mentioned restricting orifice (31) comes off and have the annular groove (41) of the above-mentioned back-up ring of setting-in (32) at above-mentioned support (30) inner peripheral surface from above-mentioned support (30).
8, according to the constant flow electric valve described in the claim 7, it is characterized in that,
Above-mentioned constant flow device (12) is fixed in the above-mentioned valve body (13) replaceably by pipeline bindiny mechanism (21).
9, the constant flow electric valve described in according to Claim 8 is characterized in that,
The valve body (13) of said electric valve (10) has from the bellmouth (22) of a distolateral peristome (20) towards the downstream hole enlargement,
Above-mentioned support (30) possesses the annular lip body (36) of the taper surface (36a) with the angle of inclination that equates with above-mentioned bellmouth (22) on periphery,
Above-mentioned pipeline bindiny mechanism (21) possesses pipe joint (45) and union nut (46),
Connect above-mentioned valve body (13) and aforementioned tube joint (45) by above-mentioned union nut (46), push above-mentioned body flange (36), above-mentioned taper surface (36a) is crimped onto in the above-mentioned bellmouth (22) by aforementioned tube joint (45).
10, according to the constant flow electric valve described in the claim 7, it is characterized in that,
Above-mentioned back-up ring (32) is made of C type circle,
Above-mentioned support (30) has the annular groove (41) of the above-mentioned C type of setting-in circle (32) on inner peripheral surface.
11, according to the constant flow electric valve described in the claim 7, it is characterized in that,
Above-mentioned support (30) has towards the hole (33) of upstream side curve hole enlargement,
Above-mentioned restricting orifice (31) has the throttle orifice (40) littler than the diameter in the hole (33) of above-mentioned support (30).
12, according to the constant flow electric valve described in the claim 7, it is characterized in that,
Above-mentioned support (30) has straight hole (33),
Above-mentioned restricting orifice (31) has than little throttle orifice (40) of hole (33) diameter of above-mentioned support (30) and the conical recess (61) that is communicated with of throttle orifice (40) therewith,
The recess (61) of above-mentioned restricting orifice (31) and the hole (33) of above-mentioned support (30) relative to each other, above-mentioned restricting orifice (31) is embedded in the above-mentioned support (30).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003-351764 | 2003-10-10 | ||
| JP2003351764A JP4319508B2 (en) | 2003-10-10 | 2003-10-10 | Constant flow motor valve |
| JP2003351764 | 2003-10-10 | ||
| JP2004-020926 | 2004-01-29 | ||
| JP2004020926A JP2005214281A (en) | 2004-01-29 | 2004-01-29 | Air conditioning control system |
| JP2004020926 | 2004-01-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1605817A CN1605817A (en) | 2005-04-13 |
| CN100434838C true CN100434838C (en) | 2008-11-19 |
Family
ID=34797121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100849096A Expired - Fee Related CN100434838C (en) | 2003-10-10 | 2004-10-10 | Air conditioner controlling system and constant flow electric valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100434838C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110186759A1 (en) * | 2008-04-30 | 2011-08-04 | Danfoss Polypower A/S | Power actuated valve |
| CN103375622B (en) * | 2012-04-13 | 2017-09-12 | 菲姆斯股份公司 | Fluid regulating valve for equipment, particularly adjustment equipment |
| CN104373633A (en) * | 2013-08-12 | 2015-02-25 | 孝感亚华电子科技有限公司 | Digital-type electric-control gas adjusting valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05231551A (en) * | 1991-03-11 | 1993-09-07 | Fuji Denso Kk | Rotary control valve |
| JPH10176858A (en) * | 1996-12-16 | 1998-06-30 | Yamatake Honeywell Co Ltd | Controller for air conditioning |
| US5810326A (en) * | 1996-02-16 | 1998-09-22 | Mueller Industries, Inc. | Refrigerant powered actuated ball valve |
| CN2490375Y (en) * | 2001-07-30 | 2002-05-08 | 自贡市地佩尔阀门有限公司 | High-temp. fixed ball valve |
| CN2556449Y (en) * | 2002-06-20 | 2003-06-18 | 张丙礼 | Electric flow control valve |
-
2004
- 2004-10-10 CN CNB2004100849096A patent/CN100434838C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05231551A (en) * | 1991-03-11 | 1993-09-07 | Fuji Denso Kk | Rotary control valve |
| US5810326A (en) * | 1996-02-16 | 1998-09-22 | Mueller Industries, Inc. | Refrigerant powered actuated ball valve |
| JPH10176858A (en) * | 1996-12-16 | 1998-06-30 | Yamatake Honeywell Co Ltd | Controller for air conditioning |
| CN2490375Y (en) * | 2001-07-30 | 2002-05-08 | 自贡市地佩尔阀门有限公司 | High-temp. fixed ball valve |
| CN2556449Y (en) * | 2002-06-20 | 2003-06-18 | 张丙礼 | Electric flow control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1605817A (en) | 2005-04-13 |
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