CN1376885A

CN1376885A - Heater and heater connecting accessories

Info

Publication number: CN1376885A
Application number: CN 02107857
Authority: CN
Inventors: N·比耶加德
Original assignee: Danfoss AS
Current assignee: Danfoss AS
Priority date: 2001-03-26
Filing date: 2002-03-25
Publication date: 2002-10-30
Anticipated expiration: 2022-03-25
Also published as: EP1245909A2; CN1182350C; EP1245909A3; DE10114992C1

Abstract

A heater connecting accessories (1) has a housing (2) which contains a supply duct arrangement comprising a feeder (13) duct and return flow (14) duct. A heater duct arrangement comprises a discharge duct (7) and inflow duct (8). At least one valve with valve seating (17) and closure element (18) are between the supply duct and heater arrangements. The center axes (9-12) of all the ducts (7, 8, 13, 14) are biasing each other to achieve the aim of simple process.

Description

Heater coupling and heater

Technical field

The present invention relates to a kind of heater coupling, it has a shell, a liquid feeding channel device and a heater lane device that has an output channel and an input channel that has a trace passage and a backhaul passage is arranged on this shell, wherein between liquid feeding channel device and heater lane device, be provided with a valve at least, and all passages all has central axis with valve seat and closure member.The invention still further relates to a kind of heater with heater coupling.

Background technology

By DE 197 47 274 A1 are known a kind of like this heater coupling and a kind of like this heater arranged.Coupling usually is also referred to as H type joint according to its profile.The liquid feeding channel device is connected with a pipe-line system that is fixed in building herein, can make the input and output of heat supply liquid by this system.The output channel of heater lane device is connected with a tube connector of heater, and heat supply liquid is just sent into heater by this tube connector.The another one tube connector of the heater of heat supply liquid output is connected with the input channel of heater lane device.The passage of the passage of heater lane device and liquid feeding channel device for example can be in 180 ° or 90 ° of deflections layouts.Also can other angular relationship under exception.Owing to be furnished with valve between heater lane device and liquid feeding channel device, it is the quantity that is used to control heat supply liquid, thus generally be provided with inclined hole, thus just arrange that in the inside of shell promising valve seat provides the pipeline in space.If that also can adopt other shell mechanism design without inclined hole.This shell mechanism, for example the projection of portion or dividing plate can make a kind of like this processing and manufacturing of annex become complicated in the enclosure.

Summary of the invention

Task of the present invention is to simplify the processing and manufacturing of heater coupling.

For the heater coupling of the described kind of beginning, the method that solves this task is that the central axis side direction of all passages is setovered mutually.

Just can be processed into these passages with this technical scheme by holing to make easily.Because the side direction biasing has just formed the space that can arrange valve seat can be provided.Boring can all have identical orientation, that is to say that can change shell when holing on shell aims at the orientation of drilling machine optical axis.And only need make shell center on its longitudinal axis revolution, so that get boring from each different side.But a kind of like this angle position of predesignating than accurate setting of operating is much simple.The definition of " boring " should make structural design be not limited to the processing and manufacturing process in hole.These borings also can be processed into other method.

In a kind of preferred design, the central axis of all passages is arranged in the plane perpendicular to the longitudinal axis of shell.These passages are not only arranged in parallel to each other or are arranged in the parallel plane so, and they are also perpendicular to shell.This has just further simplified processing and manufacturing.Shell only need keep and drilling machine optical axis aligned orientation correspondingly.But a kind of like this clamping of shell can be no problem.

These passages are offset relative to each other in this wise, thereby between the cross section, hole that subtend is arranged mutually, keep a predetermined spacing.For this design, not high for the required precision that the drilling depth that constitutes passage proposes.This wants coefficient passage overlapping in a longitudinal direction after just allowing to make these fully.So in many cases or even favourable, can be used as end face boring and be processed into because be used for the interface channel of these passages.If these passages just connect through a kind of like this interface channel, so just can control heat supply liquid with less relatively cost, because only need change the circulation cross section size of interface channel by shell.Advantageously make valve seat become certain pitch arrangement.For example can constitute valve seat by the cross section that reduces interface channel steppedly.Closure member is always only moved perpendicular to valve seat.This has just guaranteed good sealing property and long service life.

Advantageously make the passage of at least one lane device be extended to connecting hole.This has just simplified the assembling of annex.Belong to the pipeline of these passages as long as plug-in mounting is gone in the connecting hole simply.The processing and manufacturing of annex has also just been simplified, because do not need to form complicated connection geometric relationship.

If connecting hole inside is level and smooth, and have a fastener to be used for heater joint outside the connecting hole, this is with regard to advantageous particularly so.Fastening effect and pipeline effect are separated.To just make the pipeline that is used for heat supply liquid in corresponding pipeline or the corresponding joint insertion connecting hole.Sealing between pipeline and the connecting hole can guarantee with corresponding seal.Pipeline or joint come fastening with fastener.And fastener needn't design cost as the liquid sealing.

Advantageously make fastener that a clamping plate is arranged, this clamping plate can move towards shell by the central axis that a clamping device is parallel to the passage of heater lane device.This clamping plate thereby two functions are arranged.A function is that corresponding tube connector or pipeline end are fixed in the shell.It also is used for another function producing certain clamping force when assembling, and this power for example can be used to improve sealing effectiveness.

Advantageously make clamping device be designed to screw, the screw thread in it and the clamping plate is meshing with each other.A kind of like this design of clamping device is simple especially.The gearratio of screw still can produce bigger power and be fastenedly connected and manage pipeline end in other words.

If fastener can tilt with respect to shell in a predetermined angular range, that also is favourable.In some cases, the tube connector on a heater is not accurately isometric, but differs seldom several millimeters.If allow to make fastener to tilt a little, a kind of like this error is big with regard to what not playing when the processing and manufacturing heater so, because it can compensate by this fastener.For the pipeline end of heating system, if they stretch out wall or base plate with very little difference, that also is so certainly.

Fastener is arranged between the connecting hole.The there has enough spaces can two connecting holes and the tube connector or the pipeline end of the inside of packing into be fixed with a unique fastener on the other hand for utilizing on the one hand.Outside connecting hole, just no longer needed the measure that adds.This has just simplified processing and manufacturing.

For the heater of the described kind of beginning, the method that solves this task is that two tube connectors of heater are inserted in the connecting hole of heater lane device.

Just simplified the installation of the coupling on heater with this design.The tube connector of heater only need insert in the connecting hole.Can cancel complicated screw thread like this tightens.

Be preferably between the inwall of the outer wall of tube connector and connecting hole and arrange a sealing ring respectively at least.The sealing circle has just constituted the sealing between tube connector and the shell.Can in the inwall of connecting hole, be provided with under the necessary situation one around groove, sealing ring just is embedded in this groove or is arranged in this groove.But this is not that pressure is essential.Even also can realize enough sealings by means of this sealing ring for level and smooth inwall.

Each tube connector preferably has one to make the engaging-in engaging-in groove wherein of clamping plate.A kind of so engaging-in groove is made than being easier to, and for example cuts or turning processing by washing.When engaging-in this groove of clamping plate, that has just fixed this tube connector, prevents that it from going out with landing in the connecting hole.This is that a kind of tube connector and shell of relatively simply making can lean against the measure that is connected with each other.

Preferably make first section width of clamping plate equal the degree of depth that two spacings between the tube connector add engaging-in groove, and second section width is bigger, wherein is circular arc from first section to second section changeover portion.First section of clamping plate can be embedded between two tube connectors.Second section clamping plate, especially circular arc section just hold around tube connector on a bit of circumference of a side that embeds clamping plate.This has improved chucking power.

More advantageously between the shell of heater coupling and heater a protecting sheathing is set, it will connect circumference of cannon bone and wrap.This protecting sheathing has many advantages.Just can't see this clamping device from the outside.Clamping device just is protected to be avoided polluting.Also make in addition owing to outside interference causes damaging at the connecting hole position the dangerous less of clamping plate, tube connector or shell.

Description of drawings

Followingly in conjunction with the accompanying drawings the present invention is carried out detailed narration according to a kind of preferred embodiment.Be illustrated as herein:

Fig. 1: by the longitudinal cross-section of a heater coupling;

Fig. 2: the outer upward view of heater coupling;

Fig. 3 a: vertical view of clamping plate.

The specific embodiment

Fig. 1 has represented to have the heater coupling 1 of a shell 2.Coupling 1 is connected with the pipe 3 of a heater of not expressing in detail.Pipe 3 has a dividing plate 4, and for example separate the inflow side and the outflow side of water with heat supply liquid for it.There is a tube connector 5 inflow side, and there is a tube connector 6 outflow side.These two tube connectors 5,6 are all fixedlyed connected with pipe 3, for example welding.

Shell 2 has an output channel 7, through this passage heat supply liquid is flowed out from shell 2 and enter 5 li of tube connectors.Shell 2 also has an input channel 8, can make the heat supply liquid that cools down flow back to shell 2 the insides again from tube connector 6 through this passage.Output channel 7 has a central axis 9, and input channel 8 has a central axis 10.Output channel 7 and input channel 8 have constituted a heater lane device together, just make coupling and heater by this device, also promptly are connected with pipe 3.

Also have a liquid feeding channel device for 2 li at shell, it has a trace passage 13 and the backhaul passage 14 that central axis 12 is arranged that central axis 11 is arranged.From trace passage 13 with all can only see the cross section in hole from backhaul passage 14, because 90 ° of the mutual angular deflections of heater lane device and liquid feeding channel device, if observe this coupling 1, that is to say by shown in Figure 1 from words left or that observe from the right side from its two end face sides.

Trace passage 13 is connected with output channel 7 through first passage 15.Backhaul passage 14 is connected with input channel 8 through second passage 16.First passage 15 and second passage 16 respectively have a stair-stepping enlarged-diameter.Enlarged-diameter in 15 li in first passage has formed a valve seat 17, and it is used for the closure member 18 of a heater thermostatic valve 19 that only schematically illustrates, and can control the flow of heat supply liquid flow through heater with this valve 19.Almost allow fully to circulate in position shown in the closure member 18.Closure member 18 moves strong more towards valve seat 17, throttling is just strong more.The method that realizes this throttling is that the free perforate cross section of trace passage 17 is covered more consumingly by closure member 18 on the one hand.Towards the motion of valve seat 17 cross section that flows freely between valve seat 17 and the closure member 18 is diminished by closure member 18 on the other hand.

In 16 li in second passage a valve seat 20 is arranged also, when stopper 21 continued to be screwed into 2 li on shell, stopper 21 just can be pressed to valve seat and realized contact.

Can certainly arrange on the contrary that also promptly: valve can be arranged in the backhaul pipeline, just in 16 li in second passage, stopper then is arranged in 15 li in first passage.More reasonably be to come control valve in this case according to liquid stream temperature.

Output channel 7 and input channel 8 are expanded into connecting

hole

22,23, have inserted tube connector 5,6 in these connecting holes.The inside of connecting

hole

22,23 is designed to level and smooth.A sealing ring 24,25 is respectively arranged between tube connector 5,6 and connecting

hole

22,23, thereby realized sealing.The assembling of coupling 1 on heater 3 thereby simple especially.Only tube connector 5,6 need be inserted 22,23 li of connecting holes.

Tube connector 5,6 has engaging-in groove 26,27, for example can form with a cannelure.26,27 li of clamping plate 28 engaging-in these engaging-in grooves are pressed to shell 2 by a screw 29 with clamping plate 28.Clamping plate 28 has an internal thread 30 for this reason.Screw 29 is by 31 guiding of a hole on the shell 2.Hole 31, screw 29 and clamping plate 28 all are arranged between two connecting

holes

22,23, thereby clamping plate 28 is acted on two tube connectors 5,6 simultaneously.

Can allow to make clamping plate 28 when clamping motion, roughly to be inclination, thereby can compensate the mismachining tolerance that in several millimeters scopes, changes.

As seen from Figure 3, clamping plate 28 has two sections, and also promptly first section 32 width equals the degree of depth that two spacings between the tube connector 5,6 add two engaging-in grooves 26,27.Thereby first section 32 can push in engaging-in groove 26,27 scopes between two tube connectors 5,6.Clamping plate 28 also has second section 33, and its width is bigger, and wherein the changeover portion between first section 32 and second sections 33 is then along a circular arc 34.The curvature of circular arc 34 is substantially equal to the curvature in the circumferential wall of 26,27 li tube connectors 5,6 of engaging-in groove.The assembling of clamping plate 28 thereby relatively simple.Clamping plate 28 can be said so moves on to two block places between the tube connector 5,6 always, after passing shell 2 on the tube connector 5,6, screw 29 is screwed into screw thread 30 then.

Tube connector 5,6 is surrounded by a protecting sheathing 35, and this protecting sheathing is between shell 2 and pipe 3.Protecting sheathing 35 has just formed a sheath simply, and it has formed certain protection on the other hand and prevented to sustain damage and pollute on the one hand from having covered the connection between tube connector 5,6 and the shell 2 in appearance.This protecting sheathing 35 for example can be made of plastics.

As seen from Figure 2, all be provided with for trace passage 13 and backhaul passage 14 and be connected projection 36,37, they all have external screw thread 38,39, and the pipeline that is fixedly mounted on the heating system in the building just can be connected on these external screw threads with usual way.

A kind of like this processing and manufacturing of coupling 1 is simple especially.All

passages

7,8,13,14,15,16 can be made by boring, these borings or be vertical or parallel to the longitudinal axis 40 of shell 2.Because the mutual offset placement of central axis side direction of all passage 9-12, and the free cross section of

passage

7,8,13,14 do not cover mutually, thereby arranges real valve seat 17,20 with regard to there being enough spaces to be used to.

If need from configuration aspects certainly, 180 ° of the mutual deflections of heater lane device and liquid feeding channel device or another angle are arranged.For example when the pipeline of heating system be extracting on the base plate, that just can be like this.

Claims

1. hot device coupling, a shell is arranged, this shell has the liquid feeding channel device and the heater lane device that has an output channel and an input channel that have a trace passage and a backhaul passage, valve with valve seat and closure member wherein is set at least, and all passages all there are central axis between liquid feeding channel device and heater lane device, it is characterized in that, all passages (7,8,13,14) central axis side direction is biasing mutually all.

2. by the described annex of claim 1, it is characterized in that the central axis (9-12) of all passages (7,8,13,14) all is arranged in the plane perpendicular to the longitudinal axis (40) of shell (2).

3. by claim 1 or 2 described annexes, it is characterized in that passage (7,8; 13,14) biasing mutually makes to keep a predetermined spacing between the hole cross section that subtend is arranged mutually.

4. by the described annex of claim 3, it is characterized in that valve seat (17,20) is arranged at regular intervals.

5. by any described annex in the claim 1 to 4, it is characterized in that the passage of at least one lane device (7,8) is extended to connecting hole (22,23).

6. by the described annex of claim 5, it is characterized in that the inside of connecting hole (22,23) is level and smooth, and have one to be used for heater joint (5,6) at connecting hole (22,23) fastener (28-30) in addition.

7. by the described annex of claim 6, it is characterized in that fastener has a clamping plate (28), it can be parallel to the passage (7,8) of heater lane device by means of a clamping device (29) central axis (9-12) moves to shell (2).

8. by the described annex of claim 7, it is characterized in that clamping device is designed to screw (29), the screw thread (30) of it and clamping plate (28) lining is in engagement.

9. by any described annex in the claim 6 to 8, it is characterized in that fastener (28-30) can tilt with respect to shell (2) in a predetermined angular range.

10. by any described annex in the claim 6 to 9, it is characterized in that fastener (28-30) is arranged between the connecting hole (22,23).

, heater (3) it is characterized in that two tube connectors (5,6) of heater (3) all are inserted in connecting hole (22, the 23) lining of heater lane device 11. having one by any described heater coupling (1) in the claim 1 to 10.

12. by the described heater of claim 11, it is characterized in that, between the inwall of the outer wall of tube connector (5,6) and connecting hole (22,23), respectively arrange at least one sealing ring (24,25).

13. by claim 11 or 12 described heaters, it is characterized in that each tube connector (5,6) all has an engaging-in groove (26,27), clamping plate (28) with regard to engaging-in in this groove.

14. by the described heater of claim 13, it is characterized in that, the width of clamping plate (28) first sections (32) equals this two tube connectors (5,6) spacing between adds engaging-in groove (26,27) the degree of depth, and the width of second section (33) is bigger, is one section circular arc (34) from first section to second section transition wherein.

15. by any described heater in the claim 11 to 14, it is characterized in that, a layout protecting sheathing (35) between the shell (2) of heater coupling (1) and heater (3), this shell is surrounded tube connector (5,6).