CN213657134U - Positive displacement heat exchanger with automatic water replenishing device - Google Patents

Positive displacement heat exchanger with automatic water replenishing device Download PDF

Info

Publication number
CN213657134U
CN213657134U CN202022633582.0U CN202022633582U CN213657134U CN 213657134 U CN213657134 U CN 213657134U CN 202022633582 U CN202022633582 U CN 202022633582U CN 213657134 U CN213657134 U CN 213657134U
Authority
CN
China
Prior art keywords
water
heat exchanger
pipe
inlet pipe
positive displacement
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202022633582.0U
Other languages
Chinese (zh)
Inventor
刘林沛
魏鑫
单铁彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Extra High Heat Exchange Equipment Co ltd
Original Assignee
Beijing Extra High Heat Exchange Equipment Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Extra High Heat Exchange Equipment Co ltd filed Critical Beijing Extra High Heat Exchange Equipment Co ltd
Priority to CN202022633582.0U priority Critical patent/CN213657134U/en
Application granted granted Critical
Publication of CN213657134U publication Critical patent/CN213657134U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The application relates to a positive displacement heat exchanger with an automatic water replenishing device, which comprises a heat exchanger body and further comprises the automatic water replenishing device, wherein the automatic water replenishing device is positioned at the upper part of the heat exchanger body and comprises a water inlet pipe connected with a municipal water network, the tail end of the water inlet pipe is provided with a water replenishing tank, the water inlet pipe is connected with a heated water outlet on the heat exchanger body, and the tail end of the water inlet pipe is internally provided with a one-way control piece used for controlling water in the water replenishing tank to flow into the water inlet pipe in a one-way manner; the water supply device is characterized in that the water supply pipe extending into the water supply tank is connected to the water inlet pipe, and a water supply assembly for automatically controlling the water supply pipe to supply water into the water supply tank is arranged in the water supply tank. It can be convenient for guarantee that at municipal water supply pressure of cutting off water diminishes or becomes zero, this internal heated water entry of heat exchanger can normally have the effect that water got into.

Description

Positive displacement heat exchanger with automatic water replenishing device
Technical Field
The application relates to the technical field of heat exchange equipment, in particular to a positive displacement heat exchanger with an automatic water replenishing device.
Background
The positive displacement heat exchanger is suitable for hot water supply systems of general industrial and civil buildings, high-temperature hot water or high-temperature steam produced by boilers and other equipment is generally adopted as a heat source of the heat exchanger to increase domestic water to a specified temperature, and heat source water or steam condensate water after heat exchange is pressurized by a water pump and returns to the boiler for reheating.
A corrugated pipe heat exchange element with the prior grant publication number of CN2546836Y and an instant heating positive displacement heat exchanger adopting the same comprise a shell, wherein a heated water outlet and a safety valve are arranged at the top end of the shell, a sewage discharge port and a fixing device are arranged at the bottom end of the shell, two groups of heat exchange components which are connected in series are arranged in the shell, the two groups of heat exchange components which are connected in series are provided with a first heat exchange element shell and a second heat exchange element shell, a heated water inlet and a heated water outlet are arranged on the first heat exchange element shell, a heated water inlet and a heated water outlet are arranged on the second heat exchange element shell, the heated water outlet of the first heat exchange element shell is connected with the heated water inlet of the second heat exchange element shell, and a heated water inlet is.
The technical scheme has the following problems: the heated water of the positive displacement heat exchanger is generally supplied by municipal water, and when the municipal water is supplied, water is generally pressurized by water supply equipment so as to enter the positive displacement heat exchanger from a heated water inlet. Once municipal water supply pressure diminishes or becomes zero, not only can bring the influence to the water use of positive displacement heat exchanger immediately, because heat exchanger inner structure is complicated, the heated area is great moreover, in case dry combustion method maintenance is very troublesome, can only adopt the mode of changing usually, and then increased the capital cost.
SUMMERY OF THE UTILITY MODEL
In order to facilitate the assurance at municipal water supply water stop pressure diminish or become zero, this internal quilt of heat exchanger adds hot water inlet ability and normally has water to get into, this application provides a positive displacement heat exchanger with automatic water supply device.
The application provides a positive displacement heat exchanger with automatic water supply device adopts following technical scheme:
a positive displacement heat exchanger with an automatic water replenishing device comprises a heat exchanger body and the automatic water replenishing device, wherein the automatic water replenishing device is positioned at the upper part of the heat exchanger body and comprises a water inlet pipe connected with a municipal water network, the tail end of the water inlet pipe is provided with a water replenishing tank, the water inlet pipe is connected with a heated water outlet on the heat exchanger body, and the tail end of the water inlet pipe is internally provided with a one-way control piece used for controlling water in the water replenishing tank to flow into the water inlet pipe in a one-way manner; the water supply device is characterized in that the water supply pipe extending into the water supply tank is connected to the water inlet pipe, and a water supply assembly for automatically controlling the water supply pipe to supply water into the water supply tank is arranged in the water supply tank.
Through adopting above-mentioned technical scheme, water pressure diminishes or becomes zero in the water supply pipe, it is uneven at the both ends water pressure of one-way control, water pressure in the moisturizing box is higher than the water pressure in the water supply pipe, water pressure in the moisturizing box breaks through the restriction of one-way control, water in the moisturizing box flows into in the water supply pipe and enters into the inlet tube, realize supplying water to the inlet tube from this, the setting of moisturizing subassembly can be when water pressure resumes normally in the water supply pipe simultaneously, automatic control moisturizing pipe is to moisturizing in the moisturizing box.
The present application may be further configured in a preferred example to: the water replenishing assembly comprises a hinged rod, a floating ball and a water stop plug, wherein the hinged rod is hinged to the side wall of the water replenishing tank, the floating ball is connected to the free end of the hinged rod, the water stop plug is connected to the hinged rod, and the water stop plug is inserted into the water replenishing pipe.
Through adopting above-mentioned technical scheme, when the water level in the moisturizing case rose, the water level provided the buoyancy that rises for the floater, made the floater rise along with the rising of water level, the floater takes the hinge bar to rotate when rising, pegs graft in the stagnant water pipe until the stagnant water stopper on the hinge bar, and the stagnant water stopper plays the effect of stagnant water to the moisturizing pipe this moment, and the moisturizing pipe is no longer to moisturizing in the moisturizing case, plays the effect of automatic control moisturizing stagnant water from this.
The present application may be further configured in a preferred example to: the water stop plug is made of rubber.
Through adopting above-mentioned technical scheme, because the hinge bar is around the pin joint when the rotation and is the arc motion, the stagnant water stopper adopts the rubber material to be convenient for take place elastic deformation, is favorable to the stagnant water stopper to peg graft in the moisturizing pipe.
The present application may be further configured in a preferred example to: the water replenishing pipe is arranged at the outward flaring of the end part in the water replenishing tank, and the end, far away from the hinge rod, of the water stopping plug is arranged to be a chamfer matched with the flaring of the water replenishing pipe.
Through adopting above-mentioned technical scheme, when the stagnant water stopper was pegged graft in the moisturizing pipe, the chamfer on the stagnant water stopper cooperateed with the flaring of moisturizing pipe and uses, further guarantees that the stagnant water stopper is pegged graft in the moisturizing pipe.
The present application may be further configured in a preferred example to: the one-way control member comprises a one-way valve
Through adopting above-mentioned technical scheme, simple structure, simple to operate of check valve.
The present application may be further configured in a preferred example to: the water replenishing tank is provided with a visual window for observing the liquid level in the water replenishing tank.
Through adopting above-mentioned technical scheme, the setting of visual window is convenient for the staff real-time water level change who observes in the moisturizing case.
The present application may be further configured in a preferred example to: the utility model discloses a water supply pipe, including water supply pipe, apron, water supply tank, two arc walls have been seted up respectively to water supply tank uncovered setting, water supply tank is provided with two apron in its uncovered position relative slip, two the arc wall has been seted up respectively to the relative one side of apron on corresponding position, two when the apron meets mutually, the periphery wall laminating of water supply pipe is in the arc wall of two apron, two be provided with between the apron and be used for making both to keep relatively stable locking subassembly.
Through adopting above-mentioned technical scheme, when two apron slided mutually back to the back, can make the uncovered of moisturizing case be in the open mode, when the moisturizing case was cleared up to the later stage, the staff of being convenient for got into, and when two apron relative sliding and butt joints, the uncovered of moisturizing case can be sealed, avoids debris to enter into in the moisturizing case.
The present application may be further configured in a preferred example to: the locking assembly comprises a socket fixedly arranged on one cover plate and a plug-in box fixedly arranged on the other cover plate, and the socket is plugged in the plug-in box.
By adopting the technical scheme, the two cover plates can be connected in series by adopting the mode that the socket and the plug box are plugged, and the two cover plates can be kept stable during butt joint.
The present application may be further configured in a preferred example to: the cover plate is fixedly provided with a handle.
Through adopting above-mentioned technical scheme, the staff of being convenient for of setting up of handle slides the operation to the apron.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the water pressure in the water inlet pipe is reduced or becomes zero, the water pressure at two ends of the one-way control piece is unbalanced, the water pressure in the water supplementing tank is higher than the water pressure in the water inlet pipe, the water pressure in the water supplementing tank breaks through the limitation of the one-way control piece, and the water in the water supplementing tank flows into the water inlet pipe and enters the water inlet pipe, so that the water supply to the water inlet pipe is realized, and meanwhile, the water supplementing assembly is arranged to automatically control the water supplementing pipe to supplement water into the water supplementing tank when the water pressure in the water inlet pipe is recovered to be normal;
2. when the water level in the water replenishing tank rises, the water level provides rising buoyancy for the floating ball, the floating ball rises along with the rise of the water level, the floating ball drives the hinged rod to rotate when rising, until the water stop plug on the hinged rod is inserted into the water stopping pipe, the water stop plug plays a water stopping role for the water replenishing pipe at the moment, the water replenishing pipe does not replenish water in the water replenishing tank any more, and therefore the effect of automatically controlling water replenishing and water stopping is achieved.
Drawings
FIG. 1 is a schematic structural diagram of a positive displacement heat exchanger with an automatic water replenishing device according to an embodiment of the present application;
FIG. 2 is a schematic sectional view showing a refill tank in an embodiment of the present application;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is an exploded view of the embodiment of the present application showing the water replenishing pipe, the water stop plug and the hinge rod;
fig. 5 is a schematic structural diagram showing the water replenishing tank in the embodiment of the present application when two cover plates are opened.
In the figure, 1, a heat exchanger body; 2. an automatic water replenishing device; 21. a water replenishing tank; 211. a visual window; 212. an ear plate; 213. a guide groove; 22. a water supply pipe; 23. a water replenishing pipe; 231. a bell mouth; 24. a water inlet pipe; 25. a water replenishing assembly; 251. a hinged lever; 2511. a hinge hole; 2512. a second connection hole; 252. a floating ball; 253. a water stop plug; 2531. a cylindrical section; 25311. a via hole; 25312. a first connection hole; 2532. a conical section; 3. supporting legs; 4. a one-way valve; 5. hinging a shaft; 61. a connecting bolt; 62. a connecting nut; 7. a cover plate; 71. an arc-shaped slot; 72. a guide strip; 73. a handle; 8. a locking assembly; 81. a socket box; 82. and (4) inserting the socket.
Detailed Description
The present application is described in further detail below with reference to the attached drawings.
The embodiment of the application discloses positive displacement heat exchanger with automatic water supply device, refer to FIG. 1, including heat exchanger body 1 and automatic water supply device 2, automatic water supply device 2 is located the upper portion of heat exchanger body 1.
Automatic water supplement device 2 includes moisturizing case 21, moisturizing pipe 23, the pipe 22 that comes and inlet tube 24, and moisturizing case 21 is located heat exchanger body 1's top position department, and four supporting legs 3 of moisturizing case 21's lower extreme fixedly connected with, four supporting legs 3 are located four tip positions department and the vertical setting of moisturizing case 21 respectively.
One end of the water supply pipe 22 is connected and communicated with the pipeline of the municipal water network, and the other end of the water supply pipe 22 is fixedly connected with the side wall of the lower part of the water replenishing tank 21 and communicated with the inside of the water replenishing tank 21.
The inlet tube 24 is located between the water inlet tube 22 and the heat exchanger body 1, one end of the inlet tube 24 is fixedly connected with the heated water outlet of the heat exchanger body 1, and the other end of the inlet tube 24 is fixedly connected and communicated with the side wall of the water inlet tube 22. A one-way control piece is arranged between the water replenishing tank 21 and the water inlet pipe 24, the one-way control piece comprises a one-way valve 4, the one-way valve 4 is fixedly installed on the water inlet pipe 22, the one-way valve 4 only allows water in the water replenishing tank 21 to flow into the water inlet pipe 22 in a one-way mode, and water in the water inlet pipe 22 cannot flow into the water replenishing tank 21 through the one-way valve 4.
One end fixed connection of moisturizing pipe 23 is on the outer wall of water pipe 22 and is linked together with water pipe 22 inside, and moisturizing pipe 23 and inlet tube 24 all are located the homonymy of check valve 4, and the other end of moisturizing pipe 23 is from the top of moisturizing box 21 vertical stretching into to moisturizing box 21 in.
Referring to fig. 2 and 3, the automatic water replenishing device 2 further includes a water replenishing assembly 25, the water replenishing assembly 25 is used for automatically controlling the water replenishing pipe 23 to replenish water into the water replenishing tank 21, the water replenishing assembly 25 includes a hinged rod 251, a floating ball 252 and a water stop 253, two lug plates 212 are fixedly mounted on the side wall of the water replenishing tank 21, the two lug plates 212 are arranged oppositely and at intervals, the hinged rod 251 is located at the lower position of the water replenishing pipe 23, and one end of the hinged rod 251 is located between the two lug plates 212.
Referring to fig. 2 and 4, a hinge hole 2511 is formed in the end portion of the hinge rod 251 located between the two ear plates 212, a hinge shaft 5 is arranged between the two ear plates 212, two ends of the hinge shaft 5 penetrating through the hinge hole 2511 are respectively fixedly connected with the opposite side walls of the two ear plates 212, the hinge shaft 5 is rotatably connected with the hinge rod 251, and one end of the hinge rod 251, far away from the hinge shaft 5, is fixedly connected with the floating ball 252. The hinge lever 251 rotates from bottom to top, and when the hinge lever 251 rotates from bottom to top, the hinge lever 251 carries the float 252 to move upward.
The end of the water supply pipe 23 in the water supply tank 21 is outwardly flared 231, and the end of the water supply pipe 23 in the water supply tank 21 is located on the rotation path of the hinge rod 251.
Stop plug 253 adopts the rubber material, and the stop plug 253 of being convenient for takes place deformation, and stop plug 253 includes cylinder section 2531 and circular cone section 2532, and circular cone section 2532's the great one end of cross-sectional area and cylinder section 2531's upper end fixed connection, circular cone section 2532's pointed end insert to moisturizing pipe 23 in, circular cone section 2532's periphery wall and the interior wall laminating setting of moisturizing pipe 23.
Through hole 25311 has been seted up along its radial direction on the cylinder section 2531, and through hole 25311 and hinged rod 251 looks adaptation, hinged rod 251 wear to locate cylinder section 2531's through hole 25311. The cylindrical section 2531 is provided with a first connection hole 25312 along the radial direction, the first connection hole 25312 is communicated with the via hole 25311, the first connection hole 25312 and the via hole 25311 are distributed in a crisscross manner, the hinge rod 251 is provided with a second connection hole 2512, and the second connection hole 2512 corresponds to the first connection hole 25312. The cylindrical section 2531 and the hinge rod 251 are connected by a connecting bolt 61 and a connecting nut 62, and the connecting bolt 61 is threaded through the first connecting hole 25312 and the second connecting hole 2512 and then is in threaded connection with the connecting nut 62.
When the hinged rod 251 rotates upwards, the hinged rod 251 drives the water stop plug 253 to approach the end part direction of the water replenishing pipe 23 along the arc-shaped track, and because the water stop plug 253 can deform, when the tip of the conical section 2532 rotates to be inserted into the water replenishing pipe 23, the outer peripheral wall of the conical section 2532 is attached to the inner peripheral wall of the water replenishing pipe 23, so that the purpose of water stopping is achieved.
Referring to fig. 5, an observation port is formed in a side wall of the water replenishing tank 21, a visible window 211 is hermetically connected to a position of the observation port, and the visible window 211 is used for observing a liquid level in the water replenishing tank 21.
The upper end of the water replenishing tank 21 is arranged in an open mode, the water replenishing tank 21 is provided with two cover plates 7 at the open position of the water replenishing tank, the two cover plates 7 are arranged in a sliding mode, and when the two cover plates 7 slide to be in butt joint, the two cover plates 7 seal the open end of the water replenishing tank 21. Arc-shaped grooves 71 are respectively formed in one opposite side of the two cover plates 7, the positions of the arc-shaped grooves 71 on the two cover plates 7 are corresponding, the notches of the two arc-shaped grooves 71 are arranged oppositely, the two cover plates 7 are in butt joint and form a fixed hole when sliding to be in butt joint, and the water replenishing pipe 23 penetrates through the fixed hole and is matched with the fixed hole.
Guide slots 213 have been seted up respectively to relative both sides wall in the moisturizing case 21, and the extending direction of guide slots 213 extends along two apron 7 relative sliding's direction and sets up, and relative lateral wall fixedly connected with gib block 72 respectively on the apron 7, two gib blocks 72 on the same apron 7 are located two guide slots 213 respectively, gib block 72 and guide slot 213 looks adaptation, and apron 7 slides along the extending direction of guide slot 213.
Be provided with locking subassembly 8 between two apron 7, locking subassembly 8 sets up to two sets of, two sets of locking subassembly 8 intervals set up, locking subassembly 8 includes socket box 81 and socket 82, socket 82 and the equal fixed connection of socket box 81 are on apron 7 deviates from the open one side of moisturizing case 21, socket 82 fixed connection is on one of them apron 7, socket box 81 fixed connection is on another apron 7, two apron 7 relative sliding are to when butt joint, socket 82 pegs graft in socket box 81.
Handles 73 are fixedly connected to the two cover plates 7.
The implementation principle of the embodiment is as follows: when the municipal water supply cut-off pressure is reduced or becomes zero, the water pressure at the two ends of the one-way valve 4 is inconsistent, the water in the water replenishing tank 21 provides the water pressure for the one-way valve 4, so that a valve plate in the one-way valve 4 is opened, and the water replenishing tank 21 supplies water to the water inlet pipe 24, thereby ensuring that the water inlet of the heated water inlet of the heat exchanger body 1 is normal;
when the municipal water supply is recovered to be normal, the municipal water supply supplies water to the water supply pipe 22, the water in the water supply pipe 22 enters the water replenishing tank 21 from the water replenishing pipe 23, the water level in the water replenishing tank 21 rises step by step, the water level provides buoyancy for the floating ball 252 in the water replenishing tank 21 when rising, the floating ball 252 floats upwards around the hinged point of the hinged rod 251, the hinged rod 251 rotates towards the end part close to the water replenishing pipe 23, the hinged rod 251 drives the water stop plug 253 to rotate synchronously, when the tip of the conical section 2532 rotates and is inserted into the end part of the water replenishing pipe 23, the water stop plug 253 plays a water stop role for the water replenishing pipe 23, at the moment, the water replenishing pipe 23 does not supply water into the water replenishing tank 21 any more, and a certain water amount is temporarily stored in the water replenishing tank 21 for use.
The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (9)

1. The utility model provides a positive displacement heat exchanger with automatic water supply device, includes heat exchanger body (1), its characterized in that: the automatic water replenishing device (2) is positioned at the upper part of the heat exchanger body (1), the automatic water replenishing device (2) comprises a water inlet pipe (22) connected with a municipal water network, a water replenishing tank (21) is arranged at the tail end of the water inlet pipe (22), a water inlet pipe (24) connected with a heated water outlet on the heat exchanger body (1) is connected onto the water inlet pipe (22), and a one-way control piece used for controlling water in the water replenishing tank (21) to flow into the water inlet pipe (22) in a one-way mode is arranged at the tail end of the water inlet pipe (22);
the water supply device is characterized in that a water supply pipe (23) extending into the water supply tank (21) is connected to the water inlet pipe (22), and a water supply assembly (25) for automatically controlling the water supply pipe (23) to supply water into the water supply tank (21) is arranged in the water supply tank (21).
2. A positive displacement heat exchanger with automatic water replenishment according to claim 1 wherein: the water replenishing assembly (25) comprises a hinge rod (251) connected to the side wall of the water replenishing tank (21) in a hinged mode, a floating ball (252) connected to the free end of the hinge rod (251) and a water stop plug (253) connected to the hinge rod (251), and the water stop plug (253) is inserted into the water replenishing pipe (23).
3. A positive displacement heat exchanger with automatic water replenishment according to claim 2, wherein: the water stop plug (253) is made of rubber.
4. A positive displacement heat exchanger with automatic water replenishment according to claim 3, wherein: the end part of the water replenishing pipe (23) in the water replenishing tank (21) is flared outwards, and one end, away from the hinged rod (251), of the water stop plug (253) is provided with a chamfer matched with the flaring of the water replenishing pipe (23).
5. A positive displacement heat exchanger with automatic water replenishment according to claim 1 wherein: the one-way control member comprises a one-way valve (4).
6. A positive displacement heat exchanger with automatic water replenishment according to claim 1 wherein: the water replenishing tank (21) is provided with a visual window (211) for observing the liquid level in the water replenishing tank (21).
7. A positive displacement heat exchanger with automatic water replenishment according to claim 1 wherein: the uncovered setting of moisturizing case (21), moisturizing case (21) are provided with two apron (7) in its uncovered position relative slip, two arc wall (71) have been seted up respectively to apron (7) relative one side on corresponding position, two when apron (7) dock mutually, the periphery wall laminating of moisturizing pipe (23) is in arc wall (71) of two apron (7), two be provided with between apron (7) and be used for making both to keep relatively stable locking subassembly (8).
8. A positive displacement heat exchanger with automatic refill device according to claim 7, wherein: the locking assembly (8) comprises a socket (82) fixedly arranged on one cover plate (7) and an insertion box (81) fixedly arranged on the other cover plate (7), and the socket (82) is inserted into the insertion box (81).
9. A positive displacement heat exchanger with automatic water replenishment according to claim 8 wherein: and a handle (73) is fixedly arranged on the cover plate (7).
CN202022633582.0U 2020-11-13 2020-11-13 Positive displacement heat exchanger with automatic water replenishing device Active CN213657134U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022633582.0U CN213657134U (en) 2020-11-13 2020-11-13 Positive displacement heat exchanger with automatic water replenishing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022633582.0U CN213657134U (en) 2020-11-13 2020-11-13 Positive displacement heat exchanger with automatic water replenishing device

Publications (1)

Publication Number Publication Date
CN213657134U true CN213657134U (en) 2021-07-09

Family

ID=76684459

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022633582.0U Active CN213657134U (en) 2020-11-13 2020-11-13 Positive displacement heat exchanger with automatic water replenishing device

Country Status (1)

Country Link
CN (1) CN213657134U (en)

Similar Documents

Publication Publication Date Title
US20160003468A1 (en) Indirectly Heated, Storage Water Heater System
US6837303B2 (en) Internal water tank solar heat exchanger
CN213657134U (en) Positive displacement heat exchanger with automatic water replenishing device
KR20150003546U (en) Water tank for hot-water boiler
KR200358960Y1 (en) Condensation water and water supply apparatus for steam boiller
CN2465105Y (en) Waste gas flow resisting device for condensed water receiving tube of gas boiler
CN208765273U (en) A kind of combined module type boiler water cycle unit
CN210034541U (en) Multi-valve-element balanced automatic water replenishing valve
CN2238535Y (en) Automatic water supply apparatus for livestockand birds
KR930007293Y1 (en) Hot water boiler
KR200461820Y1 (en) A water level controller for steem generation device
US5344071A (en) Expansion tank airation device
KR200194661Y1 (en) a heating water auto-supply appartus in boiler
CN220187482U (en) Flue gas heat exchanger with afterburning boiler
CN207112999U (en) The exhaust integrated equipment of heating system high position constant pressure supply water
CN207066223U (en) A kind of cooling tower level pressure automatic water-replenishing device
CN109307372B (en) Full-automatic cleaning device of solar water heater
KR820001757Y1 (en) Supplying water control piping device of multiple construction type
CN2893548Y (en) Full automatic feeding water solar water heater
CN207879677U (en) A kind of water supply pump machine water shutoff retracting device
KR800001094Y1 (en) Water hammer pump
CN2261003Y (en) Box-type water-supplying heating device
CN204648565U (en) A kind of parasitic type humidifier
KR820002445Y1 (en) Water circulating apparatus for water boiler
JPS62106187A (en) Automatic check valve for feed water

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant