Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
  • F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
  • F04F5/10—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing liquids, e.g. containing solids, or liquids and elastic fluids
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
  • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
  • F04F5/46—Arrangements of nozzles
  • F04F5/461—Adjustable nozzles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
  • F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
  • F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
  • F04F5/44—Component parts, details, or accessories not provided for in, or of interest apart from, groups F04F5/02 - F04F5/42
  • F04F5/46—Arrangements of nozzles
  • F04F5/463—Arrangements of nozzles with provisions for mixing
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
  • F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
  • F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
  • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
  • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
  • F16K11/083—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with tapered plug

Definitions

• the present invention relates to a jet mixer, and more particularly to a jet mixer for use in a solar water heater water supply system, and belongs to the technical field of solar water heaters.
• the working principle of the non-pressure-bearing solar water heater is: the tap water is connected to the inlet and outlet of the water tank (water retaining plate) through the control switch until the water tank and the glass heat pipe are filled, and the glass heat pipe absorbs the sunlight and heats the water tank and the glass heat pipe. Water, the water in the water tank is heated and then flows through the water inlet and outlet to the indoor water unit for the user to use.
• the water tank and the glass heat pipe of this structure only bear the water pressure at the height of the water tank, and the pressure is small. Therefore, the glass heat pipe and the water tank do not need a pressure-resistant design, and the material is saved, and the cost is lower than that of the pressure-bearing solar water heater.
• Chinese patent document CN103016421A discloses a jet and a water heater valve having the same, which belongs to a non-pressure-bearing water heater valve, which achieves a jet pressurization and a cost reduction by setting a reasonable jet pressurization structure. effect.
• Cipheral Patent Document CN102086941B discloses a water mixing valve including a valve body, the valve body is provided with a valve body cold water inlet, a valve body hot water inlet, a valve body water outlet, and a nozzle connected to the valve body cold water inlet.
• the nozzle is provided with a nozzle cold water inlet and a nozzle cold water outlet, and the valve body is further provided with a hot water regulating chamber connected to the valve body hot water inlet and a water mixing chamber connected to the valve body water outlet.
• the water mixing chamber and the hot water regulating chamber pass through a hot water regulating chamber
• the valve body hot water outlet is connected at the end, and the mixing chamber is also connected to the nozzle through the nozzle cold water outlet.
• the nozzle When it is necessary to adjust the hot water flow, the nozzle can be screwed in or selected from the valve body to reduce or increase the cross-sectional area of the hot water inlet. At the same time, the nozzle also reduces or increases the interface agent of the cold water inlet, thereby adjusting The mixing ratio of hot and cold water.
• the nozzle has the following defects in its use:
• the technical problem to be solved by the present invention is to provide a double-linking jet water mixer that uses high comfort, low cost, and convenient operation.
• the present invention provides a double-linking jet water mixer, including a water mixer body having a cold water port, a hot water port, and a water mixing outlet, and the opening sizes of the cold water port and the hot water port are a dual-linkage control valve adjustment; and a jet injection valve having a valve body, a nozzle and a spray needle, a cold water inlet and a hot water inlet being opened on the valve body, the nozzle and the needle being disposed in the valve body, a spray needle is disposed in the nozzle, a cold water inflow space and a jet cold water outlet are formed between the nozzle and the spray needle, and a hot water inflow space is formed between the nozzle and the valve body, the cold water inlet Separably communicating with the cold water inlet and the cold water inflow space respectively, the hot water inlet is respectively connected to the hot water port and the hot water inflow space; the position of the spray needle in the axial direction of the jet injection valve is fixed The position of the nozzle in
• the rotating member is coupled to the needle to drive the needle to rotate at the same time; the nozzle cooperates with the valve body by restricting the rotating portion, so that when the rotating member drives the needle to rotate, The nozzle does not rotate relative to the valve body, but it is movable relative to the valve body in the axial direction of the needle by the movement adjusting device.
• the valve body of the jet injection valve communicates with the throat at a front end in the direction of the cold water injection, and the throat communicates with the small end of the reduced diameter expansion pipe.
• the inner diameter of the throat ranges from 5 to 14 mm, and the length of the throat is in the range of 5 to 8 times its inner diameter.
• the inner diameter of the throat ranges from 6 to 10 mm.
• An expansion angle of 5 ° -15 ° is formed between the outer wall of the expansion tube and the extension line of the outer wall of the throat, and the outlet diameter of the expansion tube is 1.5-4 times the diameter of the inlet.
• the expansion angle of the dilation tube is a continuous expansion.
• the expansion angle of the dilation tube is a segmented expansion.
• the restricting rotating portion is a polygonal end portion formed on the nozzle, and an inner wall shape of the valve body is matched with the polygonal end portion.
• the nozzle has a nozzle taper portion, and the small port end of the nozzle taper portion is the jet cold water outlet.
• the needle has a needle body and a needle tapered portion provided at an end of the needle body.
• the taper angle of the nozzle taper is larger than the taper angle of the taper of the needle.
• the taper angle of the needle taper portion ranges from 20 ° to 90 °, and the taper angle of the nozzle taper portion ranges from 30 ° to 100 °.
• the needle body is provided with a support body in a circumferential direction, and the support body cooperates with an inner wall of the nozzle to prevent the needle from shaking under the impact of cold water inflow, and a fluid passage is formed between adjacent support bodies. .
• the support body is a plurality of ribs uniformly distributed around the needle main body in the circumferential direction and extending in the axial direction thereof, and the plurality of ribs form the fluid passage therebetween.
• the rib includes a first portion and a second portion, wherein a radial dimension of the first portion is smaller than a radial dimension of the second portion, an outer surface of the second portion and the nozzle The inner cavity fits.
• the length of the second portion is smaller than the length of the first portion, and the length of the first portion is not less than the length of the inlet of the nozzle in the axial direction of the needle and the nozzle axis The sum of the trips.
• the total cross-sectional area of the fluid passage formed between the ribs is larger than the cross-sectional area of the jet cold water outlet when injected.
• the water quantity adjustment switch includes a base mounted on the water mixer body, a valve core that cooperates with the base to adjust a flow rate of cold water and a flow of hot water, and a handle for driving the rotation of the valve core,
• the base is in communication with the cold water port and the hot water port through a communication hole.
• the side wall of the base has a water flow introduction port communicating with an external water supply pipe, and the valve core has a water flow regulating port, and the water flow introduction port and the water flow regulating port axially correspond to each other.
• the double-linking jet water mixer provided by the present invention, the needle is disposed in the nozzle, and a cold water inflow space and a jet cold water outlet are formed between the nozzle and the needle, in the nozzle and the nozzle Forming a hot water inflow space between the valve bodies, the cold water inlets respectively communicating with the cold water inlet and the cold water inlet flow space, wherein the hot water inlets are respectively connected to the hot water outlet and the hot water inlet flow space, when in use,
• adjustment of the cold water inflow space, the hot water inflow space, and the jet cold water outlet can be realized, specifically: when the nozzle moves so that the cross section of the cold water inflow space becomes small, The cross section of the hot water inflow space becomes larger, so that the adjustment of the water mixing temperature can be realized by a relatively simple operation, and more importantly, when the cross section of the cold water inflow space is small, the cross-sectional area of the jet cold water outlet is also
• the technical solution of the invention achieves a better spraying effect in a relatively simple operation manner; in addition, the double-linked jet water mixing device of the invention adopts a double linkage control valve to simultaneously adjust the flow of hot and cold water entering the valve body. , make the water mixer compact and easy to use.
• the double-linking jet water mixer provided by the present invention further includes a rotating member that is rotatably disposed on the valve body, and the rotating member is coupled to the nozzle to drive the needle to rotate simultaneously;
• the nozzle is axially moved and engaged with the rotating member by an axial movement adjusting device; the nozzle cooperates with the valve body by limiting the rotating portion, when the rotating member drives the needle to rotate,
• the nozzle does not rotate with respect to the valve body, but it is movable relative to the valve body in the axial direction of the needle by the movement adjusting device.
• the needle In use, as long as the rotating member is rotated, the needle can be rotated together, because an axial movement adjusting device is disposed between the needle and the nozzle, and the nozzle is restricted by the limiting rotating member on the valve body, and cannot be Rotating, during the rotation of the needle, under the adjustment of the axial movement adjusting device, the nozzle moves axially along the needle, and then the cold water inflow space and heat through the nozzle.
• the clever design enables simple operation.
• the valve body of the jet injection valve is connected to the throat along the front end of the cold water injection direction, and the small end of the throat tube and the variable diameter expansion tube Connected, when cold water is ejected from the jet cold water outlet along the front end of the needle, since the jet cold water outlet is the smallest cross section in the entire flow passage, the pressure loss before this The loss is minimal, so the jet cold water outlet can fully convert the cold water pressure to the water discharge speed, so that the cold water sprayed from the jet cold water outlet has a better speed.
• the throat communicates with the hot water inflow space
• a high pressure is formed around the cold water due to the high-speed injection and entrainment of the cold water, thereby sucking in the hot water, and the arrangement of the throat ensures the hot water sucked in and
• the cold water is thoroughly mixed and subjected to sufficient energy transfer;
• the inner diameter of the throat is in the range of 5-14 mm, and the length of the throat is in the range of 5-8 times its inner diameter.
• the function of the expansion tube is to reduce the flow rate of the water, and convert the kinetic energy of the mixed water at the outlet of the throat into pressure energy, and the outer wall of the expansion tube forms an extension of 5-15° with the extension of the outer wall of the throat.
• the expansion angle, the expansion angle continuous expansion or multi-stage expansion ensures that the speed is gradually converted into pressure, and has a good use effect.
• the diameter ratio of the outlet of the expansion tube to the inlet is 1.5-4.
• the support body is a plurality of ribs uniformly distributed around the needle main body in the circumferential direction and extending along the axial direction thereof, and the plurality of the ribs are mutually The fluid passage is formed between them.
• the rib includes a first portion and a second portion, wherein a radial dimension of the first portion is smaller than a radial dimension of the second portion, and an outer surface of the second portion and a lumen of the nozzle Cooperate.
• the radial dimension of the first portion is less than the radial dimension of the second portion.
• the first portion corresponds to the inlet of the nozzle, and the radial dimension is smaller than the second portion.
• the water at the nozzle inlet is uniformly introduced into the fluid passage formed by the rib to ensure the fluid.
• the cross-sectional area of the channel is larger than the cross section of the jet cold water outlet of the nozzle, ensuring that the cold water pressure is not lost before the jet cold water outlet of the nozzle, and the jet effect is good.
• the double-linking jet water mixer provided by the present invention, when the nozzle moves along the axial direction, the cold water inlet on the valve body always corresponds to the inlet of the nozzle. Since the cold water inlet on the valve body always corresponds to the inlet of the nozzle, such that when the nozzle is moved along the axial direction, the inlet of the nozzle is always constant, and the water pressure at the nozzle inlet is always equivalent. The water pressure at the cold water inlet of the valve body ensures that the spray is still good when the proportion of cold water is small. Shooting effect.
• Figure 1 is a schematic view showing the structure of the valve body formed by the nozzle, the needle and the rotating member of the embodiment 1;
• Figure 2 is a view showing the structure of the needle of the embodiment 1;
• Figure 3 is a schematic view showing the structure of the structure of Embodiment 1;
• Figure 4 is a view showing the structure of the jet injection valve of Embodiment 1;
• Figure 5 is a schematic view showing the appearance of the jet injection valve of Embodiment 1;
• Figure 6 is a view showing the structure of the nozzle of Embodiment 3.
• Figure 7 is a view showing the structure of the nozzle of Embodiment 2.
• Figure 8 is an assembly diagram of a double linked jet water mixer
• Figure 9 is a schematic view showing the ceramic stator structure of the double linkage control valve
• Figure 11 is a side view of the ceramic rotor of the double linkage control valve
• Figure 12 is a schematic diagram of the principle when the double-linkage control valve is completely closed when the hot and cold water is completely closed;
• Figure 13 is a schematic diagram of the principle of the double-linked control valve opening half of the hot and cold water
• Figure 14 is a schematic diagram of the principle of the double linkage control valve when the hot and cold water is fully opened;
• Figure 15 is a structural view of the diffuser tube of Embodiment 1;
• Figure 16 is a view showing the configuration of the diffusing pipe of Embodiment 7.
• A-water mixer body A1-water nozzle; A2-hot water port; a-mount; b-ceramic stator; bl-inlet cold water through hole; b2-inlet hot water through hole; b3- Out of cold water through water hole; b4 - hot water through water through hole; b5- fixed plate diversion area sinking; c-ceramic moving piece; cl-moving piece diversion area sinking; c2-positioning boss; c3 - square boss; B-jet injection valve; B1-cold water inlet; B2- hot water inlet; 1-valve body; 13-rotating member; 3-nozzle; 31-pressurized section; 32-jet cold water outlet; Limiting rotation part; 34-nozzle taper; 35-inlet; 36-axial movement adjustment device; 4-needle; 41-needle body; 42-needle cone; 43-ring; 44-convex Rib; 44a-first; 44b-second; 45-annular support plate; 46-drain; 48
• Embodiment 1 As shown in FIG. 8, the embodiment provides a double-linking jet water mixer, comprising a water mixer body A and a jet injection valve B, the jet injection valve B having a cold water inlet B1 and a hot water inlet B2, the cold water The port A1 is in communication with the cold water inlet B1, and the hot water port A2 is in communication with the hot water inlet B2, and the water flow rate entering the cold water port A1 and the hot water port A2 is adjusted by a double interlocking control valve.
• the double linkage control valve includes a mounting seat a mounted on the water mixer body A, and the mounting base a includes cold water connected to an outside cold water inlet pipe.
• the double linkage control valve further comprising a mounting in the installation Mounting accessories for the ceramic stator b, the ceramic rotor 0, the ceramic rotor b and the ceramic rotor c in the seat a.
• the ceramic movable piece c has a disk-shaped body, and two end faces of the moving plate are formed on one end surface of the disk-shaped body, and the moving piece is guided.
• the region sinking cl does not extend to the other end surface of the disc-shaped body in the axial direction of the disc-shaped body, and the other end surface of the ceramic rotor c is formed with a positioning boss c2, the positioning The outer diameter of the boss c2 is formed with a square boss c3 extending in the radial direction along the end surface thereof, as shown in FIG.
• the mounting accessory includes a card shaft, a fixing bushing, and a lock nut
• the card shaft includes a circular base and an axially mounted rotating shaft along the circular base, and the circular base is formed with a square a groove
• the fixing bush is symmetrically disposed along an edge of the circumferential surface
• the base is formed with a U-shaped card slot.
• the ceramic stator b At the time of installation, first: fixing the ceramic stator b to the inside of the mount a such that the cold water passing through the hole bl of the ceramic stator b and the cold water of the mount a
• the hot water through water through hole b2 corresponds to the hot water inlet of the mounting seat a
• the outlet water through water hole b3 corresponds to the cold water water supply port on the mounting seat a.
• the handle is rotated to drive the card shaft to rotate. Since the card shaft is fixed to the ceramic piece c, the ceramic piece c is rotated, because the ceramic piece b is fixed to the seat. a moving on, in the process of rotating the ceramic piece b, changing the flow area of the flow guiding area of the moving plate and the flow guiding area of the stationary table b5, thereby adjusting the flow rate .
• FIG. 12 to FIG. 14 are diagrams showing a state in which the ceramic sheet group of the present embodiment is used in the process of adjusting the flow rate
• FIG. 12 is a view showing the ceramic rotor piece c in cooperation with the ceramic stator piece b when the hot and cold water is completely closed.
• State diagram it can be seen from the figure that the cold water passing through hole bl and the hot water passing through hole b2 are completely located outside the sinking table cl of the moving piece guide area, at this time, hot and cold The water can not enter the water; at the same time, the outlet water through hole b3 and the hot water through hole b4 are completely located inside the flow guide area of the moving plate, which is formed by the sinking table cl of the moving piece.
• the cross-sectional area of the overflow region formed by the sinking table cl and the stator baffle b5 is close to zero, the cold water passing through the water, the through hole b3, and the hot water passing through Hole b4 cannot be discharged.
• the cross-sectional area of the over-flowing area formed by the overlapping of the plated flow guiding area table b5 and the moving piece guiding area sinking table c is gradually increased, and the cold water passing through water hole A part of the bl and the hot water passing through-hole b2 are respectively moved into the sinking table cl of the moving piece, and the cross-sectional area of the overflowing area is gradually increased to start water inflow, and at the same time, A part of the cold water passing through hole b3 and the hot water passing through hole b4 are respectively removed from the moving plate guide area sinking table cl, and the water is discharged through the flow guiding of the overflowing area, as shown in FIG.
• the cross-sectional area of the overflow area formed by the plated bucking area b5 and the moving plate guide area sinking cl is The change of the rotation angle of the ceramic piece c is linearly increased or decreased, so that the inlet and outlet water of the hot and cold water does not become too large and small, and linear adjustment is realized.
• the jet injection valve B has a valve body 1, a rotating member 13, a nozzle 3, a needle 4, a throat 6, and a dilation tube 7.
• the valve body 1 is a housing having a cavity.
• the cavity of the valve body 1 is provided with a nozzle 3, a needle 4 and a rotating member 13.
• the side wall of the valve 1 is provided with a cold water inlet B1 and heat. Water inlet B2.
• the rotating member 13 includes a cylinder and a knob disposed at one end of the cylinder, the cylinder having a radial recess and an axial recess disposed along an axial direction thereof.
• the knob When the rotating member 13 is mounted in the valve body 1, the knob extends to the outside of the valve body 1, and the radial recess is fitted to the upper wall of the valve body 1, in the radial direction Mounting the catch member 48 on the recess causes the rotating member 13 to be mounted in the valve body 1 such that it cannot move in the axial direction relative to the valve body 1.
• the rotating member 13 is provided with an external thread.
• the needle 4 has a cylindrical needle main body 41, and one end of the cylindrical needle main body 41 is inserted into an axial recess of the rotating member 13, and the rotating member 13 does not generate a rotational displacement, and is rotatable together with the needle 4 when the rotating member 13 rotates, and the other end of the needle main body 41 is provided with a needle taper portion 42, the needle taper portion 42
• the inclined surface continuously decreases from the root thereof to the end of the jet jet, thereby ensuring the effect of linear jetting, the taper angle of the needle taper portion 42 is 10 degrees, and the large end of the needle taper portion 42 is connected at
• the needle main body 41 is uniformly provided with a plurality of ribs 44 as support bodies in the circumferential direction, and the ribs 44 extend along the axial direction of the needle main body 41, the ribs 44 has a first portion 44a having a radial diameter smaller than a radial diameter of the 44b, and a
• the axial length of the second portion 44b is smaller than the axial length of the first portion 44b, and the axial length of the first portion 44a is the inlet 35 of the nozzle 3 in the axial direction of the needle 4.
• the length of the direction is the sum of the axial travel of the nozzle 4.
• the total cross-sectional area of the fluid passage 5 is larger than the cross-sectional area of the jet cold water outlet 32 when the nozzle 3 is injected.
• the axial length of the first portion 44a of the needle 4 may also be greater than the axial direction of the inlet 35 of the nozzle 3 in the axial direction of the needle 4. The sum of the length and the axial travel of the nozzle 4.
• the nozzle 3 includes a cylindrical body having an inner cavity, and an inlet 35 for inflow of cold water is formed on a side wall of the cylindrical body, and one end of the cylindrical body is directly formed with a hexagonal nut of the inner cavity, the edge of the hex nut being snapped onto the inner wall of the valve body 1 when the nozzle 3 is mounted in the valve body 1, so that the nozzle 3 cannot be opposite to the The valve body 1 is rotated. Therefore, the hex nut serves as a restricting rotating portion 33 that restricts the rotation of the nozzle 3. At the other end of the cylindrical body, a nozzle tapered portion 34 is formed. The nozzle tapered portion 34 is formed. The small port end is used as the jet cold water outlet 32.
• the diameter of the jet cold water outlet 32 is 6 mm, and the taper angle of the nozzle taper portion 42 is 60°.
• the nozzle 3 is further formed with an internal thread.
• the internal thread on the nozzle 3 and the external thread on the rotating member 13 are formed.
• the threaded engagement, the internal thread and the external thread are used together to form the axial movement adjustment device 36, and the engagement stroke of the internal thread and the external thread is greater than the axial movement stroke of the nozzle 3.
• the diameter of the jet cold water outlet 32 may vary within 3-10 mm, preferably within the range of 4 mm-6 mm.
• the taper angle of the needle taper portion 34 may be deformed in the range of 10° - 150°, preferably in the range of 20° - 90°, and The taper angle of the nozzle taper may vary from 30° to 100°.
• the taper angle of the needle taper portion 34 is always smaller than the taper angle of the nozzle taper portion 42.
• the jet injection valve B further includes a throat pipe 6 mounted on the valve body 1 along a direction of a cold water jet, the throat pipe 6 and the jet cold water outlet 32 having a certain The distance is less than or equal to the stroke of the internal thread on the nozzle 3 and the threaded engagement of the external thread on the rotating member 13.
• the end of the throat pipe 6 is formed with a throat portion of the throat tube, and the throat portion of the throat tube is adapted to cooperate with the nozzle taper portion 42, that is, the nozzle 3 and the throat portion of the throat tube 6
• the cross-sectional area formed is larger than the cross-sectional area of the inner hole of the throat pipe 6, the large-mouth end of the tapered portion of the throat is toward the nozzle taper portion 42, and the throat pipe 6 is further extended with the variable-diameter expansion pipe 7 (see Fig. 15).
• the inner diameter of the inner diameter of the diffuser pipe 7 communicating with the throat pipe 6 is increased continuously to the end portion communicating with the water mixing port.
• the inner diameter of the throat pipe 6 is 10 mm
• the length of the throat pipe 6 is 8 times the inner diameter dimension
• the outer wall of the expansion pipe 7 and the outer wall of the throat pipe 6 are extended.
• An expansion angle of 8° is formed, and the diameter of the outlet of the expansion tube 7 is 1.5 times the diameter of its inlet.
• the inner diameter of the throat pipe 6 may vary within a range of 5-14 mm, preferably in the range of 6-10 mm, and the length of the throat pipe 6 may be in the throat pipe 6 The range of 5-8 times the inner diameter varies.
• the angle of expansion formed between the outer wall of the expansion tube 7 and the extension of the outer wall of the throat 6 may vary from 5 to 10 degrees, and the outlet diameter of the expansion tube 7 may be relative to the diameter of the inlet. Change in the range of 1.5-4 times.
• the valve body 1 is sleeved on the outside of the nozzle 3, and the restricting rotation portion 33 of the nozzle 3 is engaged on the inside of the valve body 1, thereby making the nozzle 3 can not rotate relative to the valve body 1, the upper inlet 35 of the nozzle 3 corresponds to the cold water inlet B1 on the valve body 1; then, the needle main body 41 of the needle 4 is inserted into the rotating member 13 In the axial recess, so that the needle 4 can rotate together with the rotating member 13; then, the rotating member 13 and the needle 4 mounted together are inserted into the nozzle located in the valve body 1 3 in the inner cavity, and the internal thread on the nozzle 3 is threadedly engaged with the external thread on the rotating member 13, thereby forming a jet injection valve core as shown in FIG. 1; The throat pipe 6 and the expansion pipe 7 are attached to the valve body 1 to form a jet injection valve B as shown in Figs.
• the cold water inlet B1 is in communication with the cold water inlet A1 and the cold water inlet space 9, respectively, and the hot water inlet B2 is in communication with the hot water port A2 and the hot water inflow space 8, respectively, the inlet 3 of the nozzle 3 and the valve
• the cold water inlet B1 on the body 1 corresponds.
• the inlet 35 on the nozzle 3 corresponds to the cold water inlet B1 on the valve body 1 in the whole process of the axial movement of the nozzle 3
• the water pressure at the inlet 35 of the nozzle 3 always corresponds to the water pressure at the cold water inlet B1 of the valve body 1, gp, and the inlet 35 of the nozzle 3 always has a good injection effect. Water pressure.
• the inlet 35 of the nozzle 3 is always located within the range of the cold water inlet B1 of the valve body 1, or the valve body 1
• the cold water inlet B1 is always located within the inlet 35 of the nozzle 3.
• the rotating member 13 is rotated, and the needle 4 rotates together with the rotating member 13, since the nozzle 3 is engaged with the valve body 1 by the limiting rotating portion 33 on the one hand.
• the internal thread can be screwed with the external thread of the rotating member 13 to form an axial movement adjusting device 36, so that when the rotating member 13 is rotated, the nozzle 3 can be along the valve body.
• the axial movement of 1 further changes the cross-sectional area of the cold water inflow space 9, the hot water inflow space 8 and the jet cold water outlet 32, and in the process, the inlet 35 on the nozzle 3 is always connected to the cold water inlet.
• B1 corresponds to gp.
• the size of the inlet 35 of the nozzle 3 does not change, thereby ensuring that the water pressure at the inlet 35 always corresponds to the water pressure at the cold water inlet B1 and the cold water port A1.
• the pressurizing section 31 in the present embodiment, between the support body of the needle main body 41 and the needle tapered portion 34, there is a pressurizing section 31, and the pressurizing section 31 forming the cold water inflow space 9 with the inner wall of the nozzle 3, the pressurizing section 31 being cylindrical, the diameter of which is not less than or slightly smaller than the diameter of the jet cold water outlet 32 of the nozzle 3, where "Not less than” means that the jet cold water outlet 32 is completely closed after the needle taper portion 34 is completely engaged with the jet cold water outlet 32 to prevent cold water from being ejected from the jet cold water outlet 32.
• the jet mixing device of the present invention has the effect of selecting the parameters of each component for the adsorption of hot water by the jet mixer. Important effects, the test proves that the overall structure of the jet mixer in Example 1 combined with specific parameters makes it have a very good negative pressure adsorption effect when the cold water volume is small. The detailed test results are shown in the data in Table 1; It is shown that when the temperature is adjusted to the middle state of the cold water, the overall structure of the jet mixer in Embodiment 1 combined with specific parameters also has a very good negative pressure adsorption effect when used.
• this embodiment is an improvement on the double-linking jet water mixer provided in the embodiment 1, and the main improvement is that the support body of the needle 4 has a different structure.
• the support body is an annular support plate 45 disposed on the needle main body 41, and a plurality of diversions serving as the fluid passage 5 are formed on the surface of the annular support plate 45. Hole 46. The cold water inflow is unobstructed, and the needle 4 can be uniformly supported.
• This embodiment is an improvement on the basis of the double-linked jet water mixer provided in Embodiment 1, and the main improvement lies in the nozzle 3
• the above-described restriction rotating portion 33 has a different structure.
• the restricting rotation portion 33 is a flange circumferentially disposed at an end portion of the nozzle 3, and the inner wall of the valve body 1 is provided with a sliding fit with the flange in the axial direction. Guide groove.
• This embodiment is an improvement on the basis of the double-linking jet water mixer provided in Embodiment 1, and the main improvement is that the restricting rotation portion 33 on the nozzle 3 adopts a different structure.
• the restricting rotation portion 33 is a flange provided on the inner wall of the valve body 1, and a sliding fit with the flange is provided on the end portion of the nozzle 3 in the axial direction.
• the guide groove is a flange provided on the inner wall of the valve body 1, and a sliding fit with the flange is provided on the end portion of the nozzle 3 in the axial direction.
• the main improvement is that the restricting rotation portion 33 on the nozzle 3 adopts a different structure.
• the restricting rotation portion 33 is a flange provided on an inner wall of the valve body 1 and a groove spaced apart on the flange, and the end of the nozzle 3 is along an axis A guide groove that is slidably fitted to the flange and a boss that cooperates with the groove.
• this embodiment is an improvement on the basis of the jet water mixer provided in Embodiment 1, and the main improvement is that: between the outer wall of the expansion pipe 7 and the extension line of the outer wall of the throat pipe 6, The expansion angle is formed in a segmented manner, gp, and the expansion tube 7 is in a segmented expansion manner.
• the embodiment is an improvement on the basis of the embodiment 1, and the improvement is that the axial movement device 36 does not adopt the cooperation mode of the external thread and the internal thread.
• the axial movement adjustment device 36 is a rack and gear that cooperates with each other, that is, the rack 3 is provided with the rack, and the rotating member 13 is coupled with the gear to drive the nozzle 3 to move axially.
• the present embodiment is an improvement on the basis of Embodiment 1, and the improvement is that the axial movement adjusting device 36 adopts a matching structure of a helical gear and a rack, and can convert the rotational motion of the helical gear into the movement of the rack, that is, A rack is provided on the nozzle 3, and a helical gear is provided on the rotating member 13, so that the nozzle 3 is moved in the axial direction of the needle by rotating the rotating member 13.

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• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Physics & Mathematics (AREA)
• Fluid Mechanics (AREA)
• Nozzles (AREA)
• Multiple-Way Valves (AREA)

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• 2013
  • 2013-04-27 CN CN201310152206.1A patent/CN103775677B/zh active Active
  • 2013-09-26 WO PCT/CN2013/084309 patent/WO2014173077A1/zh active Application Filing
  • 2013-09-26 IN IN789MUN2014 patent/IN2014MN00789A/en unknown

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